Merge pull request #30 from thiagomt/master

Notification of new extension
Small fixes to the new notification popup:
- name validation added when creating new context
- small codebase improvements
- comments
- notification text changed a bit
- popup window size changed a bit
Updating version + small fix in the notification HTML.
Updating .gitignore
Extensions screen added to the popup.
#29 finished - extension management from the popup.
Updating 'add to contexts' popup height to 400px.
Fixing notifications (webkitNotifications were deprecated) + small fix for displaying extensions in the popup.
Adding grunt support.
Removing code intended only for debugging (thanks to @jerone for catching this).
New release (0.410)
Bug in a grunt file.
Merge branch 'master' of github.com:kdzwinel/Context
Bug fix release.