Start MDS improvement for the unit server management with work unit load/unload
MDS development
- Terminate the insertion of the association between unit serve and cu instance (by type)
Added button for load and unload all association on the selected unit server

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
MDS Development
- created the list to show all association between unit server and work unit instance
- managed the remove of an unit server association

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
mrs and cu-toolkit development
- fix behavior on registration failure

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
debbuging the load operation between mrs and control unit implementation, need to be debugged!!!

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
first working version of Load Cu Instance need more debug

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
Fixed the load and unload process managed by the mds

Signed-off-by: Claudio Bisegni <Claudio.Bisegni@lnf.infn.it>
Merge pull request #67 in CHSBNDL/chaosframework from feature/CHSFRMWRK-34_unit_server_managment_on_mds to development

* commit '725e3be02522785ef7afb4b49bb18bc4e803b24c':
  Fixed the load and unload process managed by the mds
  first working version of Load Cu Instance need more debug
  debbuging the load operation between mrs and control unit implementation, need to be debugged!!!
  mrs and cu-toolkit development - fix behavior on registration failure
  MDS Development - created the list to show all association between unit server and work unit instance - managed the remove of an unit server association
  Added button for load and unload all association on the selected unit server
  MDS development - Terminate the insertion of the association between unit serve and cu instance (by type)
  Start MDS improvement for the unit server management with work unit load/unload