[deltacloud-devel] Removed Rails code from core

[Michal Fojtik]

Hi,

These patches will remove unused or obsolete code from 'core'.
Also this patch fixes RAILS_ROOT variable usage and removing some
unused/obsolete helpers).
Some of deltacloud includes (drivers.rb, deltacloud.rb) movedinto
lib/deltacloud directory, so root directory is now cleaner.

- Michal