cf #15 - Add issues fetching in gh3.js
cf #15 - Factorize somme CSS and correct some little display glitches
cf #15 - Display open issues for a repository
cf #15 - Add filters/sort basic options for issues
cf #15 - Mark "PR" when an issue is a pull request
cf #15 - Add missing var
cf #15 - Correct issues count display
cf #15 - Banners (fork, issue number) are black by default, red with a class
cf #15 - Factorize collapsible stuff from events to use somewhere else (issues...)
cf #15 - Ability to expand issues to see more details
cf #15 - Add assignee, author and milestone in issues
Close #15 - compress statics, ready to merge