Settings 3 implemented. Added SettingsDownloader class.
Merge commit '58f71bd36c7eb3fc0bfccf22607f22873d64045c' into feature-20140307-url-settings
Settings 3 code clean up.
Fixed caching core identity bug.
Logger is optimised.
Replaced deprecated methods
Removed unnecessary files from SDK.
Cleaned messages and sessions at app startup.
Added APNS timeout settings
Added application version info section in settings table view.
Fixed some logger settings inconsistency.
Merge branch '20140307-dev-stable' into feature-20140309-logout-shutdown

# By Sergej Jovanovic
# Via Sergej Jovanovic
* 20140307-dev-stable:
  Fixed some logger settings inconsistency.
  Added application version info section in settings table view.
  Added APNS timeout settings
  Cleaned messages and sessions at app startup.
  Removed unnecessary files from SDK.
  Replaced deprecated methods
  Logger is optimised.
  Settings 3 code clean up.
  Settings 3 implemented. Added SettingsDownloader class.
Merge remote-tracking branch 'origin/20140309-dev-bug-fixing' into feature-20140309-logout-shutdown

# By Sergej Jovanovic
# Via Sergej Jovanovic
* origin/20140309-dev-bug-fixing:
  Fixed caching core identity bug.