Support other rotation angles.
Small rotation fixes.
Proper viewport bounds changes for rotation.
Merge branch 'master' into free-hand-rotation
Increase viewport bounds slightly for rotation.
Replace error for non right-angle rotations in Rect.rotate.
Implements pinch rotate.
Fix code style issue.
Added pinchRotate option.
Fixes doc comment.
Merge pull request #466 from PathXL/free-hand-rotation

Allow all rotation angles
Merge pull request #468 from PathXL/rotate-pinch

Implements pinch rotate.
Changelog for #466 and #468
Merge branch 'master' into collections

fixed Conflicts:
	src/drawer.js