Calculate correct grade when graded by TA and being shown for group members
Change default implementation wording for team-peer-score
Changes to allow username to be loaded into question text; improved wait indication while loading said user data
Use class name to supplement font awesome to allow override to take place on group icon
Merge pull request #22 from edx-solutions/mjames/GroupWorkTweaks

Some bug fixes for group work - merging to get QA eyes on