CLOUDSTACK-6510: Fix gson serialization exception in storage migration. Gson couldn't serialize
a map with volume and storagepool objects for logging. Fixed by using volume and storage pool
ids instead of objects in the map.
CLOUDSTACK-6622: After a volume was live migrated, the destination smb storage path was added to
the folder column. For an smb share the smb credentials are in the query string of the path.
Before adding the path, smb shares query string should be cleaned up.