Improved bookmarks view controller.
Added tappable status label which reveals synchronization log.
Deletion of a DocSet now combines
- moving the directory to a temp directory which goes very fast on the main thread
- deleting the DocSet later on a background thread.
Prevents crashing the app when deleting huge DocSets on the main thread.
Merge remote-tracking branch 'omz/master'

merged updated from omz master.
Removed alert display for log entries.
Cleanup.
Renamed showSyncLog: to updateSyncState:
Controller updates syncTitleLabel text automatically.
cloudButton shows sync log.
Corrected text size. 10pt is too small on iPhone.
Corrected setting of syncTitleLabel text when connection to iCloud is not available.
Date formatting cleanup.
Fix a bug where the masterViewController's height is bigger than the screen.
When you start the app on an iPad in landscape mode the masterViewController's height will be as if it was in portrait mode.
PS: This bug is detectable only if the masterViewController has 11 or more DocSets.
Fix a bug where the search will still be active after its view controller had disappeared.

## Reproduction steps:
1. Lunch the app on iPad.
2. In landscape mode start searching (tap on the search bar)
3. Without entering anything in the search bar, Rotate the iPad to portrait mode
4. Tab on the DocSets button in the upper left corner
Merge branch 'fix-search-did-disappear'
Change SwipeSplitViewController from using an image for shadow to CoreGraphics shadow
Merge branch 'enhancement-swipeSplitViewController'

Conflicts:
	Classes/SwipeSplitViewController.m
Added iOS 6.1 DocSet
Merge pull request #38 from benjamincrozat/patch-1

Added iOS 6.1 DocSet
Add toolbar with "Disable Idle Timer" switch to DownloadViewController
Automatically toggle idle timer when downloads start/finish
Update UI (toolbar) when DownloadManager toggles idle timer
Allow user to override automatic idle timer toggling