HUE-1567 [search] Add support for a default sort order

You can now choose which fields to include in the default sorting order
Fields can be reordered as well
HUE-1554 [core] Polishing glitches from new design

Pig: Shortened editor page, switched to jHueNotify completely and improved Hive down notifications
Changed tooltips on Oozie workflow editor
FB: changed style to view file and edit file pages, fixed chmod/chown dropdown button, added a bit of padding on the file list table
Introduce height media queries on Quick start wizard and user admin, if the browser height < 800 they are fixed at the bottom, otherwise under the form
HUE-1541 [core] SAML logout
[pig] Report error when submittion fails

Also put the error in the Hue logs
[beeswax] Make sure IE doesn't cache ajax requests
Preparing for Hadoop 2.1.0
HUE-1575 [beeswax] expand_exception attribute 'message' fix

Romain: more user friendly exception, just showing up errorMessage
HUE-1561 [beeswax] HiveServer2 0.11 async query support
HUE-1573 [beeswax] Save query button fails

Adding error in logs now instead of failing silently
HUE-1417 [oozie] Check for valid action name
HUE-1577 [search] Remove null bytes in Solr response

Adding first tests
[core] jHueTour should support external links too

Added support for a plain link
[core] Add some tours
HUE-1535 [core] Restructure top bar

New look of the top bar
[oozie] Coordinator new field is not initialized in some cases
[doc] Remove conclusion for HBase
HUE-1584 [core] Force IE not to use Compatibility mode

Added meta to force IE using the edge rendering engine
HUE-1582 [core] Notification from backend are not shown

Moved the notification to the document.ready section
HUE-1583 [pig] Missing feedback when clicking on run

Now the logs section is displayed as soon as the process starts
HUE-1586 [core] Upgrade south to 0.82

Update migration files to use introspection
and check for the existence of tables.
Try-Catch was throwing errors.
Updated tests to use new test db patch method.