[SQL optimizations] - many small optimizations

• Bookmarks have only users, not usergroups
• added caching to the settings table
• removed notice message lookups (we are not really using those)...

fixes #1649 Puppet class and environment import works only on the first smart-proxy

updates UI to bootstrap v2

fixes #1333 -Destroy vs Delete inconsitent naming

Signed-off-by: Florian Koch <florian.koch1981@googlemail.com>

WIP rails3 migration

new UI for foreman

New artwork

• dark top-bar
• moved the search box below the tabs line.
• improved the show host page
• added notifications
• Settings tab now changes title based on the active action
• lots of cleanups - fixes #1066, fixes #926, fixes #628 and many other minor changes...

fixes #898 - remove old search leftovers across the app

fixes #984 - Display Error on environments->classes link

adds search to hosts refs #719

views cleanup and added more operatingsystems icons

Fixes broken links - refs #366

Fixes #366 - Redmine authorization port

This is a major feature which provides RBAC authorization within Foreman
a mental note to myself - never ever work on large commits

Fixes #204 - Remove AS from environments page

Merged import facility in Environment and Puppetclass controllers