FullCalendar 3.6/Scheduler 1.8 and more!

New features:

• Updated to FullCalendar 3.6 and Scheduler 1.8
• Added locale support via @dhiemstra @moxide (thanks!)

Bug fixes:

• Moved ember-cli-moment-shim to dependencies (fixes #54)
• Added null check when adding event source (resolves an issue introduced in FC 3.5)

Misc:

• Other dependency updates