use the full ssh comment as key

Otherwise, if several keys with the same hostname (a@foo.com, b@foo.com)
are used, only the last is stored.
Do not forget to pass the web port variable to crowbar_join template
Extracted locales into seperate locales file on the rails way
Merge pull request #227 from saschpe/release/roxy/master-authkeys

use the full ssh comment as key
Merge pull request #232 from vuntz/fix-crowbar_join

Do not forget to pass the web port variable to crowbar_join template
Merge pull request #240 from tboerger/feature/locales

Extracted locales into seperate locales file on the rails way