Fix for inconsistant theme naming in gruntfile

The gruntfile referenced the theme bing called '_s' everywhere except for in the source file for sass compilation where the theme folder was 'theme'. Fixed.
Merge pull request #3 from CamdenSegal/patch-1

Fix for inconsistant theme naming in gruntfile
Added hidden os x files to gitignore
Merge pull request #4 from CamdenSegal/patch-2

Added hidden os x files to gitignore
Make sure we are not accessing files directly, because we want to be safe.
Add empty base for custom site CLI commands
Merge pull request #6 from pmgarman/cli

Add empty base for custom site CLI commands
Merge branch 'master' of github.com:WebDevStudios/wd_s