Bug 858739 - Add thumbnail backend support. Use direct uploading to
S3/Local file system for DnD
Bug 870827 - Projects weren't being properly removed from the database when deleted from dashboard
Fix bug 869949 - Update to sequelize v1.6.0
Merge branch 'master' of https://github.com/mozilla/butter

Conflicts:
	lib/project.js
	server.js