Move the place of initializing ssh connection
Move the place of initializing ssh connection

In Net::SSH object is initialized in the constructor,
test code tries to connect to ssh port really.

gh2k/specinfra,minimum2scp/specinfra,seroron/specinfra,chorrell/specinfra,sergueik/specinfra,winebarrel/specinfra,bodgit/specinfra,ihassin/specinfra,stefanhorning/specinfra,skamithi/specinfra,tacahilo/specinfra,verisign/specinfra,electrical/specinfra,chinthakagodawita/specinfra,edolnx/specinfra,glenux/contrib-specinfra,thenexus6/specinfra,hideyuki/specinfra,mactkg/specinfra,chef-partners/specinfra-cisco,stoned/specinfra,RoboticCheese/specinfra,nurse/specinfra,r7kamura/specinfra,sorah/specinfra,uroesch/specinfra,pfaffle/specinfra,mizzy/specinfra,aibou/specinfra,hfm/specinfra,sean-horn/specinfra,higanworks/specinfra,miketheman/specinfra,k0kubun/specinfra,elibus/specinfra,optimizely/specinfra,serverspec/specinfra,lurdan/specinfra