Update mage and priest scripts to SimulationCraft git master 2014-10-29.

Mage:
* Update Ice Lance usage when talented into Mirror Images.

Priest:
* Make sure that Mind Spike won't remove Devouring Plague on the target if
  talented into Insanity.
Ignore any "scratch" directory present in the working directory.

This is just a useful place for me to stash notes or any WIP code that I
don't want to put under version control just yet.
Fix up debug options in SavedVariables: only store "true" values.
Refactor OvaleOptions by moving some options into their related modules.

Move the options and defaults for OvaleDataBroker, OvaleScripts, and
OvaleSpellFlash into their respective module files.  This improves
encapsulation.
Add a GUI front-end for OvaleSimulationCraft.

This is a simple GUI that takes as input a SimulationCraft profile (the
contents of a .simc file) and outputs a raw Ovale script translation.