Implements ability to upload local image to glance.

Change-Id: Icb53633bb1d5e1dd827f24d81ce908ed497b44f3
Implements: blueprint image-upload
Allow users to specify the order of VNICs of an instance.

Enable to order VNICs. It allows to choose your preferred network to eth0, eth1
and so on.
Added jQuery UI for implementing drag and drop sort function.

implements bp quantum-vnic-ordering

Change-Id: I29cba9004d7170af2be3a6645c2217d7a5b0f6ae
Update (some) table actions to use icons together with text

Also:
 * Update the table actions anchors with the title attribute in order
   to display the verbose_name on hovering.
 * Restore proper alignment for "Filter" buttons (Chrome)

Implements blueprint iconify-buttons

Change-Id: I4d744e5104d78da3874b699fc2e27f34158926a7
Merge "Update (some) table actions to use icons together with text"
Merge "Implements ability to upload local image to glance."
Merge "Allow users to specify the order of VNICs of an instance."
Support adding/removing instance security groups

Changes the edit instance dialog into a workflow, and adds a step
"Edit security groups" that reuses the admin:project add/remove user
dialog.

Changes:
- Allow "roles" dropdown to be hidden.
- Moved project members template into horizon/common.
- Moved workflows.py to workflows/create_instance.py so I could add
  a workflows/update_instance.py.
- Moved hardcoded UI text from js to template/workflow definition.
- Made filter-fields use placeholder attributes.
- Fixed the #add_remove being added to the URL bar when adding/removing
  members.
- Fixes the project members modal getting stuck displaying the lists
  from the first invocation of the modal and never updating
  (try clicking "modify users" for different projects).

Implements blueprint add-security-group-to-instance

Change-Id: If2939e05c92ac50bfc3c6f0112bdfc1785d9fb4e