Avoid ip/fqdn weirdness & use fsid path for keys
keys are now copied from the first available mon host

since we're now using fsid for the directory name, it should be safe to
just copy the keys from all mon hosts. Once they are copied, the rest of
the hosts will just skip copying. :)
added http/https proxy support

Added proxy support. There's an issue with using "environments" on a
vagrant ubuntu 12.04 when adding keys (and also with pip and gem
modules). Workaround for this is having two actions, one with the
environment clause and the other without if no proxy server is defined.
Merge branch 'proxy-support'