closes #2491
fix group test
update nconf, gm deps
added filter:users.isModerator
*user.isModerator*, duh
moved admin.getVoters to posts.getVoters; now getVoters modal can be accessed by moderators as well
check err
some basic moderator tests
forgot description
added some failsafe checks for filter:user.isModerator
possible fix for #2492
fixed wrong var