Readme updates, AGAIN. Changed release tracking.

Using tags now, as we should, instead of branches.
Issue #8 - Added better null checking around onActivityResult
Merge branch 'master' of github.com:tsiemens/pathfinder-toolkit
ninja typo fix
Issue #6 - Modified combat stats layout to use grey row headers.
Merge branch 'master' of github.com:tsiemens/pathfinder-toolkit
Fix #11 - Uncaught NumberFormatException from gold editText in inventory
Issue #13 - Actionbar title shows app name when nav drawer is out. settings menu item is shown as well.
Updated app version to 2.0.2. Changed roller mode button styles to look more holo-ish
Issue #1 - Updated layout of dice roller
Fix #14 - Catching exception during update when preferences are somehow long instead of int
Issue #9 - Added argument exception to abilities, and verification of skills when loaded from database.