Switch to groovy 2.3.6 and remove deprecated groovy group for gradle 2.0 compatibility
Update for current Google APIs, remove unused Maven repos
Workaround for: "Caused by: groovy.lang.GroovyRuntimeException: Conflicting module versions. Module [groovy-all is loaded in version 2.3.3 and you are trying to load version 2.3.6"
Further fixes for updated Google APIs
Set application name for Google Builder classes before calling build