Vade Arcanum 0.8

I knuckled down and did another proof-reading pass and cleaned up a lot of bits.  I also adjusted the layout of the extra spells, moving them to a 2-column format. This dropped the page count down to 10 pages, so I'm not releasing a booklet format pdf right now.

I'm a bit behind on getting this into markdown and converting that into epub and HTML formats, but that's on the docket.