Random bugfixes

First of all, thanks for the excellent module.

I'm going to be sending you pull requests for anything that I think may be of use to anyone else.  Some of what I think might be bugs you may disagree with; no problem.  Just note it and close the pull request, no hard feelings.

This pull request fixes one typo, sets the apache user's shell to a non-interactive one, and tightens down the permissions on the log directory.

Thanks,

Justin