updates version of brew to be latest at HEAD
 updates imagemagick to have librsvg as a delegate
ads slim as short name for subl as its easier to typeand sounds better!
ads z.sh to the bashrc
ads z.sh for jumping directories frecently, ads prince_xml for my motista work, ads pango for text conversion on librsvg, ads librsvg as a recipe, ads ghostscript for use with exporting using plain old imagemagick
ads z.rb for install location and git location