Changed design to bootstrap:

- New navbar with dropdown-menu for Admin
- new table design
Merge branch 'master' of github.com:GLab/ToMaTo into redesign_webfrontend

Conflicts:
	web/tomato/templates/base.html
Changed form styles and button styles. Added "Logged in as *user*".
Changed the style of the loading screen popup.
Merge pull request #367 from swuest/redesign_webfrontend

Redesign webfrontend
Merge branch 'master' of ssh://github.com/GLab/ToMaTo into template_modify