Rewrite (IGF & Detailview & SearchActivity) + Remove (ABS & SND) + Added (HEW)
Merge pull request #174 from ratan12/User_Interface

Major UI Changes

Convert to using Support Library where possible, removing unused
libraries like ActionBarSherlock, SherlockNavDrawer, and the
numberpicker backport. Use Holo Everywhere for UI consistency.
Switch to Account manager, syncadapter & contentprovider.

Changes in short:
- Cleanup unused imports
- Rewritten auto-sync (Works now on the background)
- Prefs user/password has been moved to the safe account manager
- Updated androidmanifest for the requied permissions
- Added/Removed strings
- Removed old settings
- Updated login screen (use accountmanager)