Correct database-create Name Help Text

Changes "Name of the backup" to "Name of the database"
for database-create's <Name> field

Change-Id: Id50ae583a4c39ffaff086288470b5c2d2503a67f
Closes-Bug: #1252293
Add type to volume.total for Mgmt Instance Get

Change-Id: Icf2b35d152e59f5045717f2a682f89fec23e707e
Implements: blueprint add-volume-total-attribute
Merge "Add type to volume.total for Mgmt Instance Get"