Remove stamp gem

Closes #5908

See merge request !2323

Give credit to user who created find file feature

[ci skip]

See merge request !2342

[ci skip]

Closes #5908

Properly set task-list class on single item task lists

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/4193

See merge request !2330

Update Gemfile.lock

My Bundler didn't agree with the previous order.

See merge request !2331

Link to milestone in "Milestone changed" system note

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/4141

See merge request !2203

Annotate models

Time to refresh the comments via `annotate`.


See merge request !2311

fixes ajax issue with issue spec



See merge request !2333

Ajax filter commits

Fixes #3509 

![Screenshot_2016-01-06_13.07.53](/uploads/7400d855d8207e37e3c0ec09cb2265e9/Screenshot_2016-01-06_13.07.53.png)


See merge request !2314

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Also handle commits list with Pager class to prevent code duplication
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !2328

Credit koreamic for creating Find File



See merge request !2327

Suggest prefacing find command with sudo when base permissions are wrong

Closes #5872

See merge request !2299

Fix missing date of month in network graph when commits span a month

Closes #3635, #1383

Before:

![image](/uploads/6a169e0cd402cb26f3a2cf13bd0ecc88/image.png)

After:

![image](/uploads/2600a454394383660a1e50a4a1ba1204/image.png)


See merge request !2325

Since filtering by these values is very rare (they're mostly just
displayed as-is) we don't need to waste any index space by saving them
as tags. By storing them as values we also greatly reduce the number of
series in InfluxDB.

Add new feature to find file(recreate)

While useful for finding out what methods/views belong to a transaction
this might result in too much data being stored in InfluxDB.

See merge request !2326

This reverts commit 7549102b.

Apparently I was wrong about
ActiveSupport::Notifications::Event#duration returning the duration in
seconds, instead it returns it in milliseconds already.