Various Javadoc improvements and corrections.
fix for case where resume is async and original is still emits events after onError
handle multiple onError calls
Gradle Release Plugin - pre tag commit:  'rxjava-0.9.2'.
Gradle Release Plugin - new version commit:  'rxjava-0.9.3-SNAPSHOT'.
Version 0.9.2
Merge pull request #311 from daveray/update-javadoc

Various Javadoc improvements and corrections.
Merge pull request #312 from petermd/fix-errorresumenext

Fix for OperatorOnErrorResumeNextViaObservable and async Resume