Including only ssh::server::install class in init.pp give too small scope
and cause warnings about inability to look up ssh::server::ensure.
Closes-Bug: 1355873
Change-Id: I443c9f006b47c609e4a05da38b4a2124acbf886e
swift::proxy::slo class is used to configure proxy slo middleware.
Change-Id: Ic751d2e89de39478b55e3323ddf220610b1b7541
Implements: blueprint icehouse-proxyserver-middlewares