Fix hostnames for admin virtual IPs

Because of a wrong check, we are always creating "admin.$foo" hostnames
for virtual IPs in the admin network, while this should really be just
"$foo".
Merge pull request #93 from vuntz/vip-hostname

Fix hostnames for admin virtual IPs
Merge branch 'release/roxy/master' into roxy-sync
Merge pull request #94 from vuntz/roxy-sync

Merge roxy branch into stoney
Added gitignore file
Added documentation and modified readme
Moved i18n file
Updated copyright header
Rewritten hashes to 1.9 syntax
Added magic utf8 token to ruby files
Restructured controller initializer
Added documentation base file and fixed documentation format