emiln/Protipper — pull request #34 by emiln (2013-09-26 00:00:33+00:00)
Title: Bug: DebuffRefresh and DotRefresh threw nil comparison errors

When faced with existing debuffs, but no corresponding spells to look up, both `DebuffRefresh` and `DotRefresh` threw errors, which propagated all the way to the user.

This should now be fixed for all the cases mentioned in #33.