A few changes:

 * Updated styles in Settings.java to copy the look of a Preferences activity. Removed cancel and save buttons and just called the save to the settings in onPause().
 * Removed a bunch of unused strings.
 * Fixed a few lint warnings and errors.

git-svn-id: https://android.svn.wordpress.org/trunk@928 a6565c4b-a94d-4d28-bb26-aa9e5ab542c0