Stop changing some settings

I tracked some rouge settings to this plugin after I noticed my vim acting weird when editing SLS files. Two main changes:

1. Removed settings for colorcolumn and wrap. I can understand setting ts and other stuff to try to enforce certain style, but these settings only change the way text is displayed, so should probably be left to the user.

2. Removed a couple of key remaps for folding and indents. IMHO a syntax plugin really (really, really...) shouldn't be remapping keys, and the space remap in fact broke one of my other  plugins where I was already remapping space to do something else. Also, the gv remappings are almost pointeless, since you can just use `.` to repeat the last indentation over the same block of text.

Not that theres anything inherently wrong with the stuff I took out, it's just not related to providing SLS syntax support, so should probably be somewhere else.