HabitRPG/habitrpg — pull request #1654 by paglias (2013-10-28 14:59:02+00:00)
Title: Migration to remove deleted tags from tasks

This is discussed in #1643, hope it's ok since I never wrote a migration before.

@lefnire my main doubt is that lodash should be loaded but since in older migrations it was used without being required I thought maybe it wasn't necessary.