Added Sherlock based activity and menu styles.
Added refresh menu icon.
Updated styles and attributes.
Updated .gitignore
Updated main activity layout. Old layout kept in a backup file.

About activity is now longer a dialog activity.
Added base Activity that is reponsible for setting Theme and creating
tabs.
Updated menu ActionBar menu options.
Added Overflow menu item.
Refactored MainActivity to support tabs in ActionBar.

Removed: BaseActivity because it was unused.
Add: About and Home fragments hosting functionality.
Add: ActionBar fragment initlizations and pager, adapter functionality
in MainActivity.
Added About fragment activity and fixed tab scrolling.
Added user stats fields in Prefs.
Documented methods returning null.
Added base fragment class with some utility methods.
Added invalidateOptionsMenu() when switching to About activity.
Updated about layout and main layout positions and paddings.
Added event listeners to home fragment.
Updated HISTORY file. Added license infos in sources.
Fixed menu selections when on home fragment. Removed menu when on About
fragment. 

Cleaned up unused code and variables.
Added UI functionality to display selection image when phone number is
touched.
Changed menu to show only operations and now explicit refresh button. 

Upon choosing an operation the status will be fetched from the remote
server.