Standardize on a copyright header and ensure all files have them.

Change-Id: I64812bca01ca655c9cf9239a0daea84907082a29
v3 identity - group and project api

updated with latest comments
modified entry points in setup.py
added group.py (v3)
added project.py (v3)
fixed indentation
updated to include new headers

Change-Id: Ice68b6c5bacb68d2e95321d903043056a9b8e810
Merge "Standardize on a copyright header and ensure all files have them."