- Fixed regexp test
	modified:   lib/riyic/check/command.rb
- New parameter pty in ssh_exec, to ask for pseudo-tty support (default to $debug)
- ssh_exec! now return stdout+stderr (because commands that print to stderr)

	modified:   lib/riyic/shell_mixin.rb
- test_node now is a node real test with passenger, nginx and ruby
- Better looking output in node

	modified:   lib/riyic/node.rb
	modified:   test/test_node.rb