v0.7.4

• ADD: Animation methods: setFrom, setTo, getFrom, getTo
• ADD: New AutoUpdateAnimation object. Automatically updates an animation with new
  tile layers as they become available from the Aeris API tile server.
• MOD: Improvements to animation performance
• FIX: Remove unused dependencies from bower configuration and repo.
• FIX: AnimationSync passes options to component animation objects
• FIX: Fix incorrect unloading of tile objects, which was causing animation
  to stop playing, in some cases.

See git history for a full list of changes.