WowAce

Ethan Centaurai:
    - Bump interface number to 40300.
    - Changelog update.
    - Remove pre-4.3 compatibility layer.
    - Fix GatherMate2 support.
    - Something touched these files. No actual code change.
    - Fix _NPCScan.Overlay support.
    - Changelog update.
    - Slightly increase the size of some displays.
    - Add a missing library.
    - Added background and border control to the Location module.
    - Added background and border control to the Ping module.
    - Raise the frame level of the Who Pinged display.
    - Disable Minimap pings when you change the config while in a group.
    - Make the Coordinates section of the config more awesome.
    - Bugfix.
    - Add background and border control to the Coordinates module.
    - Whoops, forgot to register LibSharedMedia-3.0 callbacks.
    - Fix the repo path of LibSharedMedia-3.0.
    - Add font selection options to the Coordinates module.
    - Add font selection options to the Ping module.
    - Add font selection options to the Location module.
    - Add LibSharedMedia-3.0 to package meta and table of contents.
    - Remove some unused code.
    - Fix an error caused by Blizzard changing stuff in Patch 4.3. Should also work for Patch 4.2.