NateHark/TrelloWIPLimits — pull request #3 by subinvarghesein (2013-07-18 08:19:16+00:00)
Title: Changed minimum accepted card limit to 0

**User scenario:** We have a card lane named "Blocked" which should not have any card ideally. This change is to cater that need.
For a lane with card limit of 0, 'at-limit' class should not be attached to it.