Remove volume source option on some dialogs

When creating a volume from snapshot or image, volume source
option should not be displayed.

Change-Id: I27d1a8e23b3ccf6c57922309bddf28dc9a76bab7
Closes-Bug: #1282845
Live Migration should not contain current host in the new host list

Change-Id: I30af5aa4943284edc16dfbde1b1354951698c77c
Closes-Bug: #1267733
Hidden checkboxes in Availability Zones table

Even if no action column in table Availability Zones, there
still has checkboxes column.

Change-Id: I5d352cf0482308976e36b61bf0a591d9815621c9
Closes-Bug:#1292329
Merge "Live Migration should not contain current host in the new host list"
Merge "Remove volume source option on some dialogs"
Merge "Hidden checkboxes in Availability Zones table"