VLDBLLA: addsite and release take only a volume

object as argument. (this should be the rule)
Adjust VolServerLLATest to that.
VLDBLLA: make addiste/remsite work.

setup unittest file for this
VLDBLLA: make lock/unlock work and test.

also use get_name_or_id() like in VolServerLLA.
VLDBLLA: add get_fileserver_uuid test

syntax cleanup for methods
VLDBLLA: make get_fileserver_list work and test it.
VLDBLLA: make get_volume_list work and test it
VLDBLLA: make sync_vldb work and do simple testing
VLDBLLA: make sync_serv work and do simple test
VLDBLLA: remove setaddrs. It should not be used anyway.
Merge pull request #107 from chanke/master

make VLDBLLA work