Partial checkin of port to Stormpath. All works but tests fail, no sign up.
Merge branch 'develop' of https://github.com/Sage-Bionetworks/BridgePF into signin
Removing Synapse and stub environment, adding env vars to Travis
Fixing the tests
Do not hold onto application reference in AuthenticationService
Merge pull request #42 from eric-wu/develop

Create DynamoDB tables
Updating to comments, merge conflicts
Updates based on build breakage
Merge pull request #43 from alxdarksage/signin

Signin
Update from upstream/develop.