Removed New Comment Link Indicator from community account settings
http://bugs.dwscoalition.org/show_bug.cgi?id=4372&list_id=27820

Removed the "New Comment Links Indicator" and "Do not include me in my own statistics" settings
from communities. (I tested first to see if that tickbox excludes the logged-in maintainer from
Google Analytics. It doesn't seem to.)
Merge pull request #328 from lucymclaughlin/comms-newbranch

Remove some settings that don't apply to communities.