Moves toward Oracle linux compat.

Fixes memcached, php and apache2 cookbooks.
Moved to using official apt cookbook, with some patch releases on git, postfix, etc.
Updated gems vagrant, vagrant-vbguest, ohai, chef. (held knife-solo).
Added yaml require to Vagrantfile do it will work on ruby 1.8.7.
Fixed issue with hosts file having bad entry using host_name.
Removed rvm-specific and librarian-related stuff from rakefile and moved to using vagrant-librarian plugin.
Added box_url for custom veewee-built oracle63-64 box.
Added 'Quick and Dirty' setup instructions for using the package installer and unversioned gems.