Merge pull request #66 from habuma/master

Sync up on security integration work and updates to dependencies.
Merge pull request #67 from habuma/master

Opened SignedRequestDecoder up for public access.
Merge pull request #68 from habuma/master

Sync up including many refactorings around config and security integration
Merge pull request #69 from habuma/master

Upgrade to Gradle 1.4
Polish
Merge pull request #70 from habuma/master

Refactored social authentication service property to be set by overridable method call instead of clumsy and non-typesafe String name reference.
Merge remote-tracking branch 'upstream/master'