Refactor to load servers during init, but not propagate
Merge pull request #114 from engineyard/init-servers

Refactor to load servers during init, but not propagate
.ruby-version file annoyance
add maintenance status

maintenance_status action returns true or false as well as outputting
"Maintenance page: up" or "Maintenance page: down"
update version to 2.5.0.pre for compatibility with next version of the
adapter