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Improve rake test

Check for `system` call return value instead of `$?.exitstatus`

CSS truncation

Use css truncation for event titles on dashboard. Fix vertical align of timestamps

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

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

Push release doc

Fix drag and drop image tests

Email hint

After this is merged decline http://feedback.gitlab.com/forums/176466-general/suggestions/5767472-move-actionmailer-sending-method-and-smpt-settings

Test ee

Regression issue

We want to aid communication between the issue tracker team and the release manager with this.

A first example of this issue is https://gitlab.com/gitlab-org/gitlab-ce/issues/294

Add pkgrio to readme

Now that we have instructions on [pkgr.io](https://gitlab.com/gitlab-org/gitlab-recipes/blob/master/install/pkgr/README.md) let's add it to the Readme.

Monthly release doc update

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>

Comment UI improvements

* use tabs for preview/write comment form because its better UX
* fix paddings for comment form and unnecessary borders
* remove unused css/js
* cleanup messy comment form html

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