resolve/refinerycms — pull request #1157 by phiggins (2011-11-29 21:34:24+00:00)
Title: Replace shell call with FileUtils.rm_rf

* Gnu rm [doesn't have the -d flag](http://linux.die.net/man/1/rm).
* Avoid the overhead of `system`.
* Shelling-out to rm probably wouldn't work at all on windows.