Add get_mode command to get file mode
Add be_readable, be_writable and be_executable file matchers
Add spec for get_mode command
Add spec for be_readable, be_writable and be_executable matchers
Fix calculation of mode_octal
Merge pull request #48 from mizzy/rwx_file_matchers

be_readable, be_writable and be_executable file matchers
Bump up version
Send example to backend
Simplify Exec backend with a method_missing method
Adjust lib/serverspec/backend/mcollective.rb
Merge branch 'dev/simplify_exec_backend' of github.com:raphink/serverspec into dev/mcollective_backend
Make sure classes and facts are not nil