Merge branch 'pr/11'
javadoc fix
Error Objects MAY be jsonObjects (Facebook).  In this case, return the error message as the stringified JSON Object
small fix because JDK8 javadoc is ultra strict
Creating dismiss callback
Adding in KitKat+ workarounds
Added a remove account method
Authz Service should understand JSON and URL encoded responses now
Sometimes the service won't unbind properly.  Let's just swallow the exception.