set default shell and set the mouse mode
Changed tabstop to 4.
Merge branch 'master' of https://github.com/Buttink/dotfiles

* 'master' of https://github.com/Buttink/dotfiles:
  Readme cleanup
  Revert "Merge pull request #410 from treppo/master"
  Remove setting 256 colors for solarized on terminal vim
  Compare version numbers properly
  Fix token color customization for CodeRay >= 1.1.0
  Allow local configuration for tmux

Conflicts:
	tmux/tmux.conf