Fix wrong key for 'usage.summary.instances' in CSV summary

In the project overview, the key for 'usage.summary.instances' the CSV
summary is wrong, it should be "Active Instances" instead of "Total
Active VCPUs".

Change-Id: Idf09fee592d522b7ebf5cffd0ce31240407c59d0
Closes-bug: 1288020
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
Handle failures on column filters more gracefully

With certain inputs it's possible for filters to fail, however we
should still display the table as well as return the data we have even
if it didn't go through one filter successfully.

We're still expecting "filters" to be made of functions, therefore the
func_name attribute should exist.

Note that this warning message being displayed still indicates that
there is a programming error somewhere that should be fixed.

Related-Bug: #1286959
Change-Id: I408dc9fbdaa7dfe49a39ad3a96a0e1256f6a99eb
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 "Fix wrong key for 'usage.summary.instances' in CSV summary"
Merge "Handle failures on column filters more gracefully"
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"