Added facebook.event=331218348435 to automation-credentials.properties.
This is used in event related tests. Avoids having to create event.
Also, attend and reject event message processors do not let you
attend/reject events you created so using the facebook event solves this
issue.
Changed FacebookConnector to return Boolean for attend and decline
event. Fixed mistaken commit in TestParent which uses a class which was
deleted (the Util which used to do the JSON parsing... now done in the
connector). 

Added AttendEventTestCases and DeclineEventTestCases and relevant
changes in beans file and flows file.
Merge branch '3.4.x' of
https://github.com/jsaliba/facebook-connector.git into 3.4.x

Conflicts:
	src/test/java/org/mule/module/facebook/automation/testcases/FacebookTestParent.java
	src/test/resources/AutomationSpringBeans.xml
	src/test/resources/automation-test-flows.xml