Unittests: detached tests are now in one test with

synchronous tests.
FileServerLLA: make it work again

just fix some attribute names etc.
BaseLLA: make error in command_list more obivous
VolServerLLA: make vos dump/restore/remove cycle

work and implement unit-test for it.
VolServerLLA: make create/remove cycle work and

implement tests for it.
VolServerLLA: make vos release work and test it.
VolServerLLA: make set_blockquota work and test it.
BaseLLA: log detached call with level info

so it's the same as for the synchronous call.
VLDBLLA.release: use underscore notation
VolServerLLA: add some mabye required features

in the future:
1. release : accecpt also volume name_or_id instead of Volume object
2. restore : accept provided flags and add them to the actual call.
   this might impact output...
VolServerLLAParse: use RuntimeError instead of VolServerLLAError
VolServerLLATest: make vos convert working.

NOTE: For this also VLDBLLA is used for addsite().
VLDBLLAParse.addsite: return True

returning None is considered an error
VolServerLLA: make vos move work and test it.

other fixes:
use get_name_or_id correctly.
Merge pull request #106 from chanke/master

fix VolServerLLA