[ci skip] Doorkeeper initializer improvements
[ci skip] Doorkeeper initializer improvements

mavenlink/doorkeeper,mavenlink/doorkeeper,mavenlink/doorkeeper,doorkeeper-gem/doorkeeper,doorkeeper-gem/doorkeeper,jasl/doorkeeper,outstand/doorkeeper,jasl/doorkeeper,outstand/doorkeeper,outstand/doorkeeper,jasl/doorkeeper,doorkeeper-gem/doorkeeper