Fix column heading order in group admin view

Created by: DarthJDG

Path and description column headings were in the wrong order.

app/views/admin/groups/index.html.haml

       %th
         Name
         %i.icon-sort-down
-      %th Path
       %th Description
+      %th Path
       %th Projects
       %th Owner
       %th.cred Danger Zone!