Refactoring

 * Better error output by redirecting stderr
 * Hopefully travis will work with mono now
 * sh_interceptor had a makeover
 * version patch bumped
 * created a sample command dsl that I will use for constructing commands in the future /cc @anthonymastrean -- what do you think?
 * fixes #66
 * fixes #63
 * Relates to #11 - releasing clean_slate -- already the command handling is vastly superior
passing tests ruby 1.9.3p374 (2013-01-15) [i386-mingw32]
normalise and null