[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)...

[UI] added meta tag headers to support tablet and phone display size correctly

title action buttons as a group.

moved to bootstrap 2.04

fixes #1572

updates UI to bootstrap v2

Adds VNC support within the browser

At first, this allows to view oVirt managed hosts within foreman.

fixes #1540 added suport for provisioning on ovirt/rhvem using fog.

This patch addes a compute resource concept within foreman

Signed-off-by: Ohad Levy <ohadlevy@gmail.com>

WIP rails3 migration

fixes #1276 - Non intrusive javascript pie and bar