Make config files owned by root:swift, instead of swift:root

We don't want the swift user to be able to write the files.
Fix permissions of /var/run/swift when using PFS
Avoid to run into a crash when disk formatting fails

If there is a disk that can't be formatted, code would
crash as it expects a UUID to be returned. Simply try
formatting it again next time.
Merge pull request #265 from dirkmueller/master

Avoid to run into a crash when disk formatting fails
Merge pull request #262 from vuntz/fix-owner

Make config files owned by root:swift, instead of swift:root
Updated routes to new rails routing
Fixed form display
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.
Replaced ruby 2.0 with 2.1.0 on travis config