Helabs/pah — pull request #439 by marcioj (2014-11-29 20:48:14+00:00)
Title: Handle version and help commands, instead of delegate directly to rails ...

...new

`pah -v` and `pah --version` display:
```
Pah version: 0.0.17
Rails version: 4.1.8
Ruby version: 2.1.5
```

`pah` without args show a help message:
```
Usage: pah Creates a new rails application using project_name
[--version|-v] Prompts the pah, rails and ruby version
```

`pah app` create the app like it does today

cc @maurogeorge @thiagogabriel @rodrigopinto

Closes #436