implement color picking from predefined set for category badges + option to change foreground color
displays the number of characters left when editing the topic title
Big commit:
- Support for a popup that shows similar topics
- Cleaned up a lot of Javascript
- Cleaned up use of Promises
We are randomly seeing the wrong serializing used in test. Trying to revert
this to see if it is the cause.

Revert "see: https://github.com/rails-api/active_model_serializers/pull/233"

This reverts commit 2a5cbd8072e8cef15d143267d66c8d8fd5563e79.
FIX: Twitter tags were using `property` instead of `name`.
Slightly offset the second popup if two are on at once
Merge pull request #462 from kubabrecka/colorpicker3

implement color picking from predefined set for category badges + option to change foreground color
Merge branch 'fixes-topic-title-length-too-short' of git://github.com/ZogStriP/discourse

Conflicts:
	app/assets/javascripts/discourse/controllers/composer_controller.js
	app/assets/javascripts/discourse/views/composer_view.js
	config/locales/client.en.yml
Fixed some merge conflicts
cs translation update
fancier favorite star on topics
just set opacity of links on archived not row
copyedit on similar topics
Show current user count for now, not at different points in time
Remove admin_report_total_users_view.js
Add user counts for each trust level to admin dashboard
Version bump to v0.8.4
keeping the French l10n up to date
bind the text entered in the category name text field to the badge
Use Diffy as DiffEngine implementation