Echo email of kicked user
"reinvite" + "reinvite <user>" commands
Kick voting
Fix bug around resetting behavior post-kick
Refactored into kick & invite methods. Added 'unkick' ability to decrement kick vote
Bug fix wrt inviting users by email address
Cut over all functions to invite helper
Merge pull request #1 from randydailey/master

Some improvements around kicking & invite behavior