Modeller v0.7.19

After playing around with it some more, discovered a few quirks here and there introduced with the sprite rendering algorithm. Fixed that up with a few other minor undesired features :p

- 321 Modeller; v0.7.19
  * MODIFICATION: Swapped Size/Scale button locations. Now buttons on top row will
                  mean local edit tools, bottom row will be global edit tools (affects
                  the bone globally, not just on that keyframe)
  * MODIFICATION: Motion listbox can no longer have nothing selected, which makes
                  little to no sense for the user (editing a 'scratch' motion)
  * BUGFIX: Move tool did not compensate for parent rotation
  * BUGFIX: Sprite translation alignment replaced with proper algorithm. Now affects
            rotation and scaling correctly.
  * BUGFIX: Global edit tools cannot be used in Edit Animations mode now.
  * BUGFIX: Loading a character did not set some motions variables properly