conpaas-director: remove useless logging statement in ManagerController

git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5075 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas-services: update libcloud. Also patch opennebula.py to attach storage volumes.

With this patch we update libcloud to version 0.12.4.

Note that this commit also includes the following patch to libcloud's
opennebula driver. The patch allows to create/attach/detach storage volumes at
runtime.

https://github.com/ema/libcloud/commit/a7f28776ccc2cf4a17d0ecf0ca6e8efd542d5bc9




git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5076 ef35cc4a-2640-4bbf-98bc-65920db7d8ae