WowAce

Chris Heald:
    - Fix bugs in deleting range makers, make range marker enable flag actually do things, fix master show/hide animations with simple alpha timer
Adirelle:
    - Added a minimal radius to adaptive zoom.
    - Update compass using Update callback.
    - Crop arrows to area edges when far clip is enabled. Fixed border texture size.
    - Sanitized showing/hiding animation calls.
    - Changed pinger name alpha to 1 from 0.75.
    - Neater compass display.
    - Background module is now simply a compass module.
    - Fixed "Background & Border" option.
Chris Heald:
    - Add ownership concept to prevent accidental modification of unowned resources due to stale handles. Move autohide functionality into the base module. Added background and border settings, for 'minimap mode'.
Adirelle:
    - Added a background and compass module.