Merge pull request #42 from bradylarson/master

Endpoint for submissions for multiple students
Merge pull request #43 from bradylarson/master

Endpoint to get student submissions and total scores.
Added weights to assignmentgroups
Added group weights to assignmentgroups
Merge pull request #44 from Blackchai/master

Added weights to assignmentGroups
Fixed parcelable method to read in list before group weights
Fixed member variable name to match api
Merge pull request #45 from hhoang/master

Fixed parcelable method to read in list before group weights
Updated gradle file
Merge pull request #46 from matthewrice345/master

Updated gradle file
Force api calls to get data from server, not cache.

This fixes issues we were having with newer apps that would randomly
return responses that were garbage.