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- optionable glance api usage, Refs #1748
- display additional glance image metadata, Refs #1748
- dynamic api endpoint urls, Refs #1658

Conflicts:
	snf-app/docs/src/upgrade.rst

Make minor fixes to settings for consistency.
Rename BYPASS_AUTHENTICATION_TOKEN to BYPASS_AUTHENTICATION_SECRET_TOKEN
to prevent Django from including it in backtraces.

The documentation needs to be refactored into distinct guides.

The backend is case insensitive and snf-image
uses all upper case keys.

fixes IE7 issue which failed to properly set empty personality array in
vm create request data.

After discussion with kpap it seems that this
method should return user's images that are shared
to member.

Conflicts:
	snf-app/docs/src/upgrade.rst

Refs #1746

Refs #1746

- avoid recursion when vm action fails

Skip initialization if glance namespace is not defined

Thanks to kpap for catching it.

- Improved image model interface to keep support with Compute Images API
- Glance HEAD request parsing to retrieve image parameters
- Minor styling improvements on vm wizard images list
- Fixed bug on Model object api property (api.call method was shared
  between all objects)
- Other minor fixes/improvements

* Add an "upload" command that uploads images to
  Pithos.
* Add -p argument to "image list" to list images
  stored in Pithos.
* Add "update" command to modify an image stored
  in Pithos.

Refs #1746