PA/Cutting Plane MIRA 

I've been developing against a much older version of cdec, so I finally had the time and brought my code up to date and cleaned it up for compatibility with the current version. I didn't touch the other version you have in there, but added mine, with its run script. It implements the passive aggressive and cutting plane versions of MIRA, along with a few other variants, and it's parallelized through iterative parameter mixing.