Adding rendezvous syncronization scheme for replication
Fixing Protocol
Merge branch 'develop' of
https://github.com/fogbow/fogbow-rendezvous.git into develop

Conflicts:
	src/test/java/org/fogbowcloud/rendezvous/xmpp/model/RendezvousTestHelper.java
Fixing tests
Adding consistent syichronize calls
Fixing
refactoring
refactoring
Limiting rendezvous WhoIsAlive answer to predefined max number.
Refactoring
Adding option to request second page of response from whoIsAlive using
tag 'after'.
Adding second page response to WhoIsAliveSync
Refactoring pagination
Refactoring pagination
Finxing test
removing siso
Changing localization.
Create fogbow-rendezvous.conf
Create log4j.properties.example
Update log4j.properties.example