Fixed JSHint globals in Imagepack.js.
Merge branch 'develop' of https://github.com/jsteinbeck/WebStory-Engine into develop
Fixed JSHint globals in Imagepack.js.
Fixed wrong file name for Imagepack asset in dev.html.
Fixed: Saving an unset imagepack resulted in an error during restoring the savegame
when the current image of the imagepack before loading the savegame was the same
as the one set on the imagepack after loading.
Updated changelog with bugfix description for last commit.
Changed the ImagePack asset to have its own default anchors.