Changes to address items below:
1) Revert 62aa12ca7abe9abe63e20f8dbd6ea7ce26d539d4 inline with the
   discussion with Hari to avoid alignment issues
2) Fix issue #1315276 https://bugs.launchpad.net/jio/+bug/1315276,
   Item 8 - Select Ubuntu12.04 as the default
   image. Note-Naveen and already fixed it but for some reason it
   doesn't work in staging server. So, this is a follow up patch.
3) Feedback from Kumara from staging server http://49.40.3.45/
   ...consistently change 'instance'->'server',
   'launch instance'->'create server', 'volume'->'disk' across
   instance-list-page, instance-create-page, instance-details-page,
   volume-list-page, volume-create-page, volume-details-page.