FELIX-3910: Refactored public methods with the BlockingSerialExecutor class. Made protected the getService method.
Moved all public methods at the top of the class.


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1535808 13f79535-47bb-0310-9956-ffa450edef68
FELIX-3910: Moved inherited m_serviceInstance attribute to this class. Made protected the getService method.


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1535809 13f79535-47bb-0310-9956-ffa450edef68