Pita/etherpad-lite — pull request #850 by fourplusone (2012-07-08 09:54:13+00:00)
Title: CodeCleanup: remove unused _opt in favor of code size/readability

The _opt object in Changeset.js is always null and therefore not unsed. In the old etherpad _opt has been a bride to some scala methods, which is now not necessary anymore