Use region from keystone settings

The keystone barclamp got the possibility to set a custom region
name. This name must be used by other barclamps as well.

related to: https://bugzilla.novell.com/show_bug.cgi?id=896481
Merge pull request #212 from toabctl/add-region-support

Use region from keystone settings
Adjust templates for Juno.
Merge pull request #214 from toabctl/juno-config

Port to Juno config
Fixed permissions for various files
Fixed raw/custom proposal links
Cleaned crowbar config and added travis image to readme

The goal is to remove the package requirements from the crowbar
configuration as the dev tool and all the dependencies for building isos
on the dell way is not maintained anymore and move the packaging to obs
instead.
Added ruby 2.1.0 to travis config
Merge pull request #216 from SUSE-Cloud/master-rails-4

Rails 4 upgrade
Juno Update: Switch to keystonemiddleware