Add a `before_end_fn` option to the code that generates cycle analytics
specs. `before_end_fn` is called before the end conditions are. Used for
data setup that needs to be called after the start conditions and before
the end conditions.

Remove overlap from the "start + end" durations in the happy test
case. For the `staging` phase, the end time is the _first_ deployment
that happens after the MR merge.

If we have 5 MRs where the `start_time`s (merge time) are the
same, and all the `end_time`s (deploy to production) a few days from
now, only the earliest deploy will get picked up, because that
consitutes a deploy for _all_ the MRs.

We fix this by removing overlap. Every `start_time` is now generated to
be _after_ the preceding `end_time`.

- Tests would randomly fail because of naming conflicts.
- Use a `random_git_name` method instead of using `FFaker` directly.

- Move the "data belongs to other project" test case into the generated
  tests, and remove the explicit tests from the `code` and `plan` phases.

1. Generalise the specs that will be common across all cycle analytics
   phases.

2. Rewrite specs `issue` and `plan` to use this abstracted testing
   strategy.

3. Specs that are specific to a given phase, or unwieldy to test in an
   abstracted manner, are added to each phase's spec.

Clean up the `issue` tests as well

- The `review` phase ends when a MR is merged, not "merged OR closed".
- The `code` phase starts when a MR is first mentioned in a commit, and
  ends when a merge request closing the issue is created.
- The `plan` phase ends when the issue first mentioned in a commit.

---

- Fix the `median` function so it sorts the incoming data points.
- A data point where `end_time` is prior to `start_time` is invalid.

All users with "Reporter" access (and above) to a project can see the
Cycle Analytics page.

1. Supported date ranges are 30 / 90 days ago. The default is 90 days
   ago.

2. All issues created before "x days ago" are filtered out, even if they
   have other related data (test runs, merge requests) within the filter
   range.

- <Not enough data> wasn't being displayed in the 'Issue' and 'Plan'
  sections.

1. Pass in an array of queries - the first to return a value will be
   used. This makes it easier to add more heuristics later.

2. Convert all queries with 'or' in the title to two separate queries.

3. Rename all `mr_` methods to `merge_request_`

1. Rewrite the `Queries` module to work off a `data_point` hash, with
   `issue` and `merge_request` as keys. The "production" query needs
   both an issue and a merge request to make it's calculation, so it
   makes sense to keep things consistent and provide the same
   data (issue + merge request) for all queries.

1. Record the `wip_flag_first_removed_at` and
   `first_assigned_to_user_other_than_author` metrics for a merge
   request. Use a `merge_request_metrics` table, similar to the one for
   `issues`. Metrics are recorded `after_save`.

2. Move larger queries to a `CycleAnalytics::Queries` module.

1. Move from raw SQL to ActiveRecord.
2. Add a non-persisted `CycleAnalytics` model to store all the queries.

1. Code is messy and untested, but it is a start.

- And store the `first_associated_with_milestone_at` and
  `first_added_to_board_at` times, when an issue is saved.

Reduce contributions calendar data payload

## What does this MR do?
Reduces the contributions calendar data payload by only passing contribution dates and counts

## Are there points in the code the reviewer needs to double check?
Please double check my javascript code 😃 

## Why was this MR needed?

Reduce user's bandwidth and decrease website loading time

## What are the relevant issue numbers?
Closes #20862 

## Screenshots (if relevant)
Before:
![Screen_Shot_2016-08-11_at_3.55.55_PM](/uploads/382842b3c889978bb302bd9057701ec3/Screen_Shot_2016-08-11_at_3.55.55_PM.png)
```
new Calendar(
  {"1439269200":0,"1439355600":0,"1439442000":0,"1439528400":0,"1439614800":0,"1439701200":0,"1439787600":0,"1439874000":0,"1439960400":0,"1440046800":0,"1440133200":0,"1440219600":0,"1440306000":0,"1440392400":0,"1440478800":0,"1440565200":0,"1440651600":0,"1440738000":0,"1440824400":0,"1440910800":0,"1440997200":0,"1441083600":0,"1441170000":0,"1441256400":0,"1441342800":0,"1441429200":0,"1441515600":0,"1441602000":0,"1441688400":0,"1441774800":0,"1441861200":0,"1441947600":0,"1442034000":0,"1442120400":0,"1442206800":0,"1442293200":0,"1442379600":0,"1442466000":0,"1442552400":0,"1442638800":0,"1442725200":0,"1442811600":0,"1442898000":0,"1442984400":0,"1443070800":0,"1443157200":0,"1443243600":0,"1443330000":0,"1443416400":0,"1443502800":0,"1443589200":0,"1443675600":0,"1443762000":0,"1443848400":0,"1443934800":0,"1444021200":0,"1444107600":0,"1444194000":0,"1444280400":0,"1444366800":0,"1444453200":0,"1444539600":0,"1444626000":0,"1444712400":0,"1444798800":0,"1444885200":0,"1444971600":0,"1445058000":0,"1445144400":0,"1445230800":0,"1445317200":0,"1445403600":0,"1445490000":0,"1445576400":0,"1445662800":0,"1445749200":0,"1445835600":0,"1445922000":0,"1446008400":0,"1446094800":0,"1446181200":0,"1446267600":0,"1446354000":0,"1446444000":0,"1446530400":0,"1446616800":0,"1446703200":0,"1446789600":0,"1446876000":0,"1446962400":0,"1447048800":0,"1447135200":0,"1447221600":0,"1447308000":0,"1447394400":0,"1447480800":0,"1447567200":0,"1447653600":0,"1447740000":0,"1447826400":0,"1447912800":0,"1447999200":0,"1448085600":0,"1448172000":0,"1448258400":0,"1448344800":0,"1448431200":0,"1448517600":0,"1448604000":0,"1448690400":0,"1448776800":0,"1448863200":0,"1448949600":0,"1449036000":0,"1449122400":0,"1449208800":0,"1449295200":0,"1449381600":0,"1449468000":0,"1449554400":0,"1449640800":0,"1449727200":0,"1449813600":0,"1449900000":0,"1449986400":0,"1450072800":0,"1450159200":0,"1450245600":0,"1450332000":0,"1450418400":0,"1450504800":0,"1450591200":0,"1450677600":0,"1450764000":0,"1450850400":0,"1450936800":0,"1451023200":0,"1451109600":0,"1451196000":0,"1451282400":0,"1451368800":0,"1451455200":0,"1451541600":0,"1451628000":0,"1451714400":0,"1451800800":0,"1451887200":0,"1451973600":0,"1452060000":0,"1452146400":0,"1452232800":0,"1452319200":0,"1452405600":0,"1452492000":0,"1452578400":0,"1452664800":0,"1452751200":0,"1452837600":0,"1452924000":0,"1453010400":0,"1453096800":0,"1453183200":0,"1453269600":0,"1453356000":0,"1453442400":0,"1453528800":0,"1453615200":0,"1453701600":0,"1453788000":0,"1453874400":0,"1453960800":0,"1454047200":0,"1454133600":0,"1454220000":0,"1454306400":0,"1454392800":0,"1454479200":0,"1454565600":0,"1454652000":0,"1454738400":0,"1454824800":0,"1454911200":0,"1454997600":0,"1455084000":0,"1455170400":0,"1455256800":0,"1455343200":0,"1455429600":0,"1455516000":0,"1455602400":0,"1455688800":0,"1455775200":0,"1455861600":0,"1455948000":0,"1456034400":0,"1456120800":0,"1456207200":0,"1456293600":0,"1456380000":0,"1456466400":0,"1456552800":0,"1456639200":0,"1456725600":0,"1456812000":0,"1456898400":0,"1456984800":0,"1457071200":0,"1457157600":0,"1457244000":0,"1457330400":0,"1457416800":0,"1457503200":0,"1457589600":0,"1457676000":0,"1457762400":0,"1457848800":0,"1457931600":0,"1458018000":0,"1458104400":0,"1458190800":0,"1458277200":0,"1458363600":0,"1458450000":0,"1458536400":0,"1458622800":0,"1458709200":0,"1458795600":0,"1458882000":0,"1458968400":0,"1459054800":0,"1459141200":0,"1459227600":0,"1459314000":0,"1459400400":0,"1459486800":0,"1459573200":0,"1459659600":0,"1459746000":0,"1459832400":0,"1459918800":0,"1460005200":0,"1460091600":0,"1460178000":0,"1460264400":0,"1460350800":0,"1460437200":0,"1460523600":0,"1460610000":0,"1460696400":0,"1460782800":0,"1460869200":0,"1460955600":0,"1461042000":0,"1461128400":0,"1461214800":0,"1461301200":0,"1461387600":0,"1461474000":0,"1461560400":0,"1461646800":0,"1461733200":0,"1461819600":0,"1461906000":0,"1461992400":0,"1462078800":0,"1462165200":0,"1462251600":0,"1462338000":0,"1462424400":0,"1462510800":0,"1462597200":0,"1462683600":0,"1462770000":0,"1462856400":0,"1462942800":0,"1463029200":0,"1463115600":0,"1463202000":0,"1463288400":0,"1463374800":0,"1463461200":0,"1463547600":0,"1463634000":0,"1463720400":0,"1463806800":0,"1463893200":0,"1463979600":0,"1464066000":0,"1464152400":0,"1464238800":0,"1464325200":0,"1464411600":0,"1464498000":0,"1464584400":0,"1464670800":0,"1464757200":0,"1464843600":0,"1464930000":0,"1465016400":0,"1465102800":0,"1465189200":0,"1465275600":0,"1465362000":0,"1465448400":0,"1465534800":0,"1465621200":0,"1465707600":0,"1465794000":0,"1465880400":0,"1465966800":0,"1466053200":0,"1466139600":0,"1466226000":0,"1466312400":0,"1466398800":0,"1466485200":0,"1466571600":0,"1466658000":0,"1466744400":0,"1466830800":0,"1466917200":0,"1467003600":0,"1467090000":0,"1467176400":0,"1467262800":0,"1467349200":0,"1467435600":0,"1467522000":0,"1467608400":0,"1467694800":0,"1467781200":0,"1467867600":0,"1467954000":0,"1468040400":0,"1468126800":0,"1468213200":0,"1468299600":0,"1468386000":0,"1468472400":0,"1468558800":0,"1468645200":0,"1468731600":0,"1468818000":0,"1468904400":0,"1468990800":0,"1469077200":0,"1469163600":17,"1469250000":0,"1469336400":0,"1469422800":3,"1469509200":14,"1469595600":54,"1469682000":0,"1469768400":4,"1469854800":1,"1469941200":0,"1470027600":0,"1470114000":0,"1470200400":1,"1470286800":0,"1470373200":1,"1470459600":0,"1470546000":0,"1470632400":0,"1470718800":0,"1470805200":0,"1470891600":2},
  '/u/root/calendar_activities'
);
```


After:
![Screen_Shot_2016-08-11_at_3.56.36_PM](/uploads/9325cdb8c0271075abee2a838c1a0787/Screen_Shot_2016-08-11_at_3.56.36_PM.png)

```
new Calendar(
  {"1469163600":17,"1469422800":3,"1469509200":14,"1469595600":54,"1469768400":4,"1469854800":1,"1470200400":1,"1470373200":1,"1470891600":2},
  '/u/root/calendar_activities'
);
```
## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5784

Capitalize mentioned issue timeline notes

## What does this MR do?
Renames `mentioned in` to `Mentioned in` for issue timeline notes

## Are there points in the code the reviewer needs to double check?
Shouldn't be any 😄 

## Why was this MR needed?
Resolves existing UI inconsistency as all the other issue timeline notes have their first letter capitalized.

## What are the relevant issue numbers?
Closes #21416 

## Screenshots (if relevant)
Before:
![Screen_Shot_2016-08-25_at_10.52.47_AM](/uploads/61de0a7d65fd739a6e565f6e63d2f52d/Screen_Shot_2016-08-25_at_10.52.47_AM.png)

After:
![Screen_Shot_2016-08-25_at_10.52.05_AM](/uploads/f67f353c285453306d6b80578b11e587/Screen_Shot_2016-08-25_at_10.52.05_AM.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !6028

Add hover color to emoji icon

## What does this MR do?
Adds hover color to emoji icon in discussions

## Are there points in the code the reviewer needs to double check?
Shouldn't be

## Why was this MR needed?
Keep consistency of color highlighting to indicate action icon

## What are the relevant issue numbers?
Closes #20629 

## Screenshots (if relevant)
Before:
![Gcy0V4Cjp9](/uploads/96a7a683fe2d526b74a05d7cc91c9fa0/Gcy0V4Cjp9.gif)
After:
![TAmusA6o1z](/uploads/1baf20390d2f1442b5fae84ae42914ce/TAmusA6o1z.gif)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5673

Fix external issue tracker "Issues" link leading to 404s

## What does this MR do?

This MR fixes the redirection to the wrong URL when using an external issue tracker, such as JIRA or Redmine.  a70431f8 modified the behavior to link to the external issue tracker
issues URL instead of the project path URL. This restores the previous behavior.

## Why was this MR needed?

The issues URL often has `:id` associated with it for linking mentioned issues.
For external issue trackers, the project page is the intended target.

## What are the relevant issue numbers?

Closes #21252

Related to #21402

See merge request !6006

Update abuse_reports.js.es6 with prettier `window.gl` assignment

## What does this MR do?

Update abuse_reports.js.es6 with prettier `window.gl` assignment provided by @selfup

**Very small change** but marks the beginning of some frontend guidelines I will soon create.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

## What are the relevant issue numbers?

## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5977

a70431f8 modified the behavior to link to the external issue tracker
issues URL instead of the project path URL. This restores the
previous behavior.

Closes #21252, #21402

Fix changelog



See merge request !6035

Add lock_version to merge_requests table

Add lock_version to merge_requests table

Closes #21465

It appears this column was mistakenly omitted in !5623 due to rebasing
issues in earlier comments.

See merge request !6037

Fix groups sort dropdown alignment

## What does this MR do?
Changes the dropdown located on the [explore groups page](https://gitlab.com/explore/groups) from left aligned to right aligned.

## Are there points in the code the reviewer needs to double check?
Shouldn't be

## Why was this MR needed?
Keeps the UI consistent for dropdowns as they are right aligned on other pages

## What are the relevant issue numbers?
Closes #21296

## Screenshots (if relevant)

Before:
![Screen_Shot_2016-08-23_at_11.21.01_AM](/uploads/9723d0166b80dcb8d7b0228063e39a77/Screen_Shot_2016-08-23_at_11.21.01_AM.png)

After:
![Screen_Shot_2016-08-23_at_11.20.52_AM](/uploads/5a55a72c10909142d02a23710736a93f/Screen_Shot_2016-08-23_at_11.20.52_AM.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5963

Closes #21465

It appears this column was mistakenly omitted in !5623 due to rebasing
issues in earlier comments.

Remove max height on pipelines graph

#### What does this MR do?
Removes max-height from pipeline graph

#### Why was this MR needed?
The height was originally put in place because some stages have ~20 tests, which ends up looking a little lopsided and there's a large amount of white space. The scrolling container, however, is not the best solution and ends up being more difficult to scroll around to find what you're looking for. For now we can remove the height, and eventually we'll have the similar tests collapsed.

#### Screenshots (if relevant)
Before:
![Screen_Shot_2016-08-24_at_11.32.39_AM](/uploads/1b32403548c6f7f4189a19279f13b84b/Screen_Shot_2016-08-24_at_11.32.39_AM.png)
After:
![Screen_Shot_2016-08-24_at_11.28.57_AM](/uploads/1327e37429b881265429f559d9d56482/Screen_Shot_2016-08-24_at_11.28.57_AM.png)

See merge request !5988

Fix inline emoji text alignment

## What does this MR do?
Changes the vertical alignment of inline emoji text from `middle` to `top`

## Are there points in the code the reviewer needs to double check?
Potential emoji side effects (I couldn't find any)

## Why was this MR needed?
Fixes UI inconsistency

## What are the relevant issue numbers?
Closes #21403 

## Screenshots (if relevant)
Before:
![Screen_Shot_2016-08-25_at_9.57.41_AM](/uploads/b7ce1da8d0eaaea3391502238a92fc77/Screen_Shot_2016-08-25_at_9.57.41_AM.png)

After:
![Screen_Shot_2016-08-25_at_9.57.49_AM](/uploads/8649c14764c3f616c487be115505c49a/Screen_Shot_2016-08-25_at_9.57.49_AM.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !6027

Remove ugly horizontal scrollbars in windows

## What does this MR do?
Removes horizontal scrollbars from pipelines view 

## Why was this MR needed?
It looked terrible.

## What are the relevant issue numbers?
Closes #21146

See merge request !5942

Fix unnecessary horizontal scroll area in pipeline visualizations

## What does this MR do?

Removes a min-width attribute for the build pipeline visualization wrapper

## Are there points in the code the reviewer needs to double check?

I am curious why this line was there in the first place.  Perhaps I'm just not seeing it.

## Why was this MR needed?

I was noticing an unnecessary horizontal scroll bar when viewing pipeline visualizations embedded in merge request builds tab:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5627/builds

## What are the relevant issue numbers?

Line appears to have been introduced in !5742

## Screenshots (if relevant)

![Screen_Shot_2016-08-24_at_11.15.13_PM](/uploads/e395ed8d4415187735d06b8386fe4633/Screen_Shot_2016-08-24_at_11.15.13_PM.png)

## Does this MR meet the acceptance criteria?

As this is a very simple cosmetic change, I don't think it warrants inclusion in the changelog, documentation, or tests.

- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !6005