modified myrg_groups/models.py
modified models.py
Merge pull request #94 from michaelnamlee/r2d2

Groups - model implementation (p. 1)
Groups - model implementation (p. 2)
Groups (p. 3)
Resolving "Group" conflict
fixed smallintegerfield instead of charfield
added rg_message and rg_repo and its model
fixed foreignkey and added permissions
added apilog model
textfield for body of messages
Merge pull request #99 from michaelnamlee/r2d2

r2d2 - messaging, repo, permissions models
Merge branch 'r2d2' of https://github.com/robogals/myrobogals into r2d2