Use monospace fonts for GFM inputs

This is an MR for [this feedback suggestion](http://feedback.gitlab.com/forums/176466-general/suggestions/5593468-use-monospace-font-in-wiki-edit-content-textarea).

I'm not sure exactly where the best place for the fix is, but I opted for the typography.scss file.  Basically, all ``textarea.js-gfm-input`` elements are styled with ``font-family: $monospace_font;``.

*PS: this being my first MR to gitlab, I apologize if I missed any steps in the process; let me know what's missing and I'll correct it here & in future MRs*

Add method to get the comments on a merge request

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

Allow at mentions for people who are not members of the project

EventCreateService class

The goal is to collect all event creation logic in one place called EventCreateService.
Because now its placed in observers, controllers, services etc

Remove author_id_of_changes

To prevent confusion because we already have `current_user`

Define Feature Request in Process doc

Conflicts:
	PROCESS.md

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

Because it adds extra spaces at each project row on dashboard

This reverts commit 2767abd9.

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

Conflicts:
	CHANGELOG
	VERSION

Update merge_request_observer_spec.rb

Remove Spork

Clearfix on .well-list

added api method to return labels of a given project

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

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

Changed sudo by su -c in init script

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>

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>

Use humanize instead of titleize for MR title suggestion