Auth with a list of projects
Return a list of projects for token validation instead of a single
project.

Change-Id: I9666868813bed27cc8473007e4d989f8566201f8
Token validation with HEAD may include a set of project ids.

Change-Id: I03c8ffee047e69a930db6b6b1c739b3e8d825fa3
Whitespace, whoops.

Change-Id: I6dbc3dc2c15d7d7f24414fe4e020698f346a1112
Minor fixes.

Change-Id: Id6130f122b4fac68fdf4eae3a191f4595268e35d
Fixed issue with project_ids missing in auth response.

Change-Id: Ied4fe776c18e0042588ecca508e866713e86ad5b