[t3087] Have zoom slider zoom out on left vs right
[#3386] Fix UI quirk in gallery loading.
[t3364] Prevent ghosts appearing on wrong track when ghosting event
would land in same place it was previously.
[#3153] Hide big play button if a clip is still loading and at the starting current time.
Bug #3392 - Prepare configuration for Heroku
Bug #3392 - Add Heroku support
Bug #3162 - Add awsbox support
[t3297] Old projects pre sequencer should have their media added as clips
[#3241] Do not fire update when url doesn't change from youtube but has a fallback.
Butter v1.0.21
No Bug - Exclude shell script that requires /usr/bin/node
Butter v1.0.22
[t3209] Refactor generateSafeTrackEvent to accept a popcorn options object vs only start/end
[t3410] Fix mixed content scripts being blocked in Chrome > 20 for Media Clip data retrieval
Bug #3406 - Use mediatypes.js to get media info if saved JSON has an invalid duration
Butter v1.0.23
#3252 Add protocol to url
Merge branch 'master' of github.com:mozilla/butter
Bug #3413 - Validation for hostname config option
[t3235] Ensure appropriate trackevent resize handles are always
displayed when trackevents are too small visually