Improved front-end editing

Front-end editing toolbar always in top of browser window
Aligned with the Admin2 look and feel
New button to open the administration interface in a new window (12)
New and higher contrast icons
Toolbar changes according to use, and also which extensions and program you run
- In opening window
- In editing mode
- When editing folders

Front-end toolbar:
Timeline is marked.

Editing folder toolbar:
9-RSS feed, 10-Add to block, 11-Multiupload, 12-Administration interface

Editing mode toolbar:
6-Preview, 7-Translate + translation button with flags
