added easings from editor
Merge pull request #143 from Animatron/skavish/easings

Added easings from editor
Merge pull request #141 from Animatron/fix-editor-incompatibilities

Fix editor incompatibilities
added names to editor easings
fixed wrong forward reference to easing's table
Merge pull request #144 from Animatron/skavish/easings

added names to editor easings, fixed error in forward ref
scripting + import fixes + VISIBLE flag in import

- element names not mangled on import anymore
- player now supports interactive mode for projects with clips only
- mouse up event handler will not check for bounds by default anymore
- support VISIBLE flag
- typos
Merge pull request #145 from Animatron/pegov/fix/scripting

scripting + import fixes + VISIBLE flag in import
minor fixes and changes to loading images
Merge branch 'master' into fix-editor-incompatibilities