added model notification and added view it
added notifications
Box-shadow added
fix bug:
1. comporage for collection
2. check id notification
3. hide notifications for  collapsed mode
4. changed key name for localStorage
Fix
fix bug with save localStorage
Merge branch 'feature/notification' of github.com:WellDoneCode/perfectpixel into feature/notification

Conflicts:
	Extension/background.js
added slide down for notifications
Merge branch 'develop' into feature/notification
Url now have random component to avoid caching
Localization support implemented
Localization support fix
Statistics gathering is added
'show' parameter fix
Notifications are closed on all tabs the same time now. Refactoring.
Merge branch 'develop' into feature/notification
Merge branch 'feature/notification' into develop