Made those changes to the 256 color version.

So, I moved the changes I made to the 256 color version into molokai. so they are only activated with a key (let g:rehash256). I did this simply by adding all my changed lines at the bottom inside of an if statement, meaning these colors are actually being set twice, which, of course, is slightly less efficient. I opted to do it this way because it causes the least amount to disruption to the existing code while adding the fewest number of total lines.

I also added definitions for spell highlighting inside of the preexisting code, because they didn't exist before. You can delete them or move them to my addition if you like. Not a big deal. I may continue making little changes to this for a while (there are still things that could be closer to the GUI colorscheme which I haven't gotten to yet). I'll yank your chain again when I finish tinkering.