changes from =~ matcing to .match to allow regular expression
v0.2.2
adds discription of regular expressions
fixes rspec-3.0.0-beta fails because instance variables are not initialize outside matcher or chain
v0.2.3
fixes Kernel class method was not stubbed

http://stackoverflow.com/questions/1168845/rspec-stubbing-kernelsleep
fixes missing output strings
modifies to use current user name if no user in ~/.ssh/ssh_config
v0.2.4
modifies wrong comment for ~/.ssh/config
changes to give more verbose output
refactors exec_command around ssh_user and options
fixes missing exepcation output
adds version constraints
v0.2.5
deletes a verbose space
fixes a problem no 'not' in negative failure
Merge branch 'master' into adds_matcher_healthcheck