Glance's Keystone endpoint does not need the '/v1'

As said in [1], “This is useless and causes problem with library using
glanceclient. Glance has already a workaround for this […]”

[1] https://review.openstack.org/#/c/18325/
And don't forget to update the tests !
Merge pull request #66 from fcharlier/fc/fix_endpoint

Glance's Keystone endpoint does not need the '/v1'
Merge pull request #70 from bodepd/fix_image_name

do not add quotes to image name
refactor of glance_image

This commit introduces a refactor of glance_image.

ensure that it follows the best practices for provider development.
- use property hash
- use mk_resource_methods
- update property hash on create and delete.

ensure that it keeps it property hash reasobly up to date.
Merge pull request #71 from bodepd/rewrite_glance

refactor of glance_image
Merge pull request #72 from bodepd/update_travis_no_2_6

Update travis no 2 6
changes required to support purging

In order for the ini file type to support purging,
the file path must be accessible on the class instance.

This patch was made to test some new functionality being added
to the inifile type
  https://github.com/cprice-puppet/puppetlabs-inifile/pull/25

It does effect backwards compat of this native type so its ok
to go ahead and merge.