Improve user block/unblock UI in admin area

Fixes #2111

See merge request !1658

Move profile groups page to dashboard

For #2069

See merge request !1654

Fix mass SQL statements during initial push of a big repository

## What does this MR do?
This MR prevents `process_commit_messages(ref)` to be executed for the initial push to the default branch.
Currently it is being executed which results in ~500000 SQL Statements during the import of the linux mainline repository.
These statements check for references to issues/mrs in each commit.
That usually doesn't make sense for the initial push, because there aren't any issues/mrs yet.

This MR will reduce the load on gitlab servers in the coming months. Especially now that several importers are available for gitlab and projects are moving from gitorious to gitlab.

See merge request !376

Add link to smtp documentation.

Closes #2070

See merge request !1627

Change button styles

Styles for buttons are changed to match user expectations.

Fixes #2004

See merge request !1580

Fix invalid config examples in OmniAuth docs

GitLab, and Google.

This commit disables process_commit_messages()
for the initial push to the default branch.
This fixes the mass SQL statements (~500000) that were executed during
the initial push of the linux kernel for example.

Fix bitbucket doc link

Fix a typo in the link to the bitbucket import documentation.

See merge request !375

Show active users(non-blocked) on admin dashboard

For gitlab/gitlab-ee#248

See merge request !1656

Fix user fixtures for development

See merge request !1657

Signed-off-by: Martin Bastien <martin.bastien@studiofrenetic.com>

Conflicts:
	app/controllers/projects/services_controller.rb
	app/models/project_services/emails_on_push_service.rb

Properly handle autosave local storage exceptions.

Addresses https://gitlab.com/gitlab-org/gitlab-ce/issues/1182.

See merge request !1643

Fix width of text in milestone lists and add assignee icon to merge requests.

Before:

![Screen_Shot_2015-03-06_at_13.48.00](https://dev.gitlab.org/gitlab/gitlabhq/uploads/5754638a3ebb79dee1f6c07a6e268035/Screen_Shot_2015-03-06_at_13.48.00.png)

After:

![Screen_Shot_2015-03-06_at_13.48.14](https://dev.gitlab.org/gitlab/gitlabhq/uploads/fe92adf387964efb3d460dfc61ced3b8/Screen_Shot_2015-03-06_at_13.48.14.png)

I've checked with other screen widths as well, and it looks good all the time.

See merge request !1645

Automatically link commit ranges to compare page.

Closes #2103

Implemented as proposed in the last paragraph of the issue:

> We could do something similar to Ruby, where `1..5` means `1,2,3,4,5` and `1...5` means `1,2,3,4`: `..` means inclusive, `...` means exclusive. In our case, `sha1...sha4` would mean `sha2,sha3,sha4` (exclusive with regards to `sha1`) and `sha1..sha4` would mean `sha1^...sha4`, i.e. `sha1,sha2,sha3,sha4` (inclusive to `sha1`).

- `sha1...sha4` now links to `compare/sha1...sha4`
- `sha1..sha4` now links to `compare/sha1^...sha4`.

See merge request !1649

GitLab UI development kit and UI guide help section

Page with UI elements get generated from current css so you can immediately check how your css changes affects common ui elements. Because it requires GitLab runnning I cannot put it to documentation so I just put link to localhost from development section

cc @developers @sabba @sytse

See merge request !1653

Mobile improvements for user page

* hide calendar on small screens
* hide sidebar and show button to toggle it

Fixes #2101

See merge request !1652

Reduce amount of custom css and increase usage of default bootstrap

* Copy variables template file for configuring bootstrap variables
* Move layout and bootstrap to `base/` directory and explicitly set import order
* Apply some styles from flatly theme
* Replace bs-callout with alert
* Refactor gitlab css state colors
* Cleanup css variables
* Remove custom css for panels and navs

See merge request !1651