fix for timeout error, timeout wasn't set if parameter not fed
Fixes argument error in NullLogger.new
Merge pull request #22 from mandre/master

em-ssh throws exception when no logger is defined
Merge pull request #20 from freakhill/timeout-fix

fix for timeout error, timeout wasn't set if parameter not fed
refs #20 pending spec for interactive module
version bump to 0.5.1
provides disconnect errors