Implement tests filters. Closes #431
Merge branch 'master' into filter-tests
Revert stupid UI tweaks - use 4a8af1
Fix count for needs one test
Add a color selector
Update bower.json
Add jquery-simple-color
Fetch the head ref when fetching pull requests.
Avoid a GitHub markdown parser request if the description text has not changed
Display a link to download the entire branch for a PR from GitHub
Update mysql.sql
Display test options only for PRs and for all registered users
Merge branch 'master' into filter-tests

Conflicts:
	src/App/Tracker/Controller/DefaultController.php
	templates/tracker/issues.index.twig
Add tests filter value and fix the search tools state
Merge pull request #433 from joomla/filter-tests

Implement tests filters
Merge pull request #451 from joomla/color-chooser

Color chooser
Merge branch 'master' of https://github.com/joomla/jissues into colorux
Color UX fix
Merge pull request #459 from allenzhao/colorux

Category UX: Color & Listing Improvement Fix #454
Add some debug code - Ref #458
Merge pull request #455 from joomla/323

Display a link to download a PR branch.
Correct spelling in successful tests form, update language templates