Upgrade EaselJS definitions to 0.7 and TweenJS to 0.5

These are only updated for EaselJS and TweenJS which is part of the CreateJS suite. The SoundJS and PreloadJS definitions have not been updated (primarily because I don't use them). I could hold off on the pull request until they are done, but given my schedule I don't know when that will be, so I thought it would be a good idea to at least push these updates.

Tests were passing when run locally.