Merge pull request #100 from edx/dev

Dev
Merge pull request #101 from edx/dev

Dev
Merge pull request #102 from edx/dev

Dev
Merge pull request #103 from edx/dev

Remove sleep in ml creator
Merge pull request #104 from edx/dev

Change ease version
Merge pull request #105 from edx/dev

Dev
removed link to non-existent security page
added header link to code.edx.org
Merge pull request #106 from edx/dev

Bump ease version
Merge pull request #107 from edx/dev

Dev
Merge remote-tracking branch 'origin/dev' into dev
Better error handling