Updated the build tools version for gradle
Merge pull request #82 from matthewrice345/master

Updated the build tools version for gradle
Fixed Kaltura media uploading
Merge pull request #83 from bradylarson/master

Fixed Kaltura media uploading
Changed an AssignmentGroup's group_weight to use a double instead of a long.

group_weights can use decimal places and will error out on retrofit for courses with group_weights
using decimal precision.
Updated the build tools version to 21.1.0
Merge pull request #84 from hhoang/master

Changed an AssignmentGroup's group_weight to use a double instead of a long
Merge pull request #85 from matthewrice345/master

Updated the build tools version to 21.1.0
Merge pull request #2 from instructure/master

Upate