[UPDATE] dircolors, vimperatorrc, vimrc, zshrc

1. Added dircolors.solarized256dark, sourced from
github.com/seebi/dircolors-solarized.
2. Fixed runtimepath in vimperatorrc.
3. Disabled indent_guides in vimrc
4. Added eval statement to load dircolors.solarized256dark on start.