only install github per default
Merge branch 'master' of https://github.com/dakl/dotfiles

* 'master' of https://github.com/dakl/dotfiles:
  use python 2.7.8 (added pyenv global [VERSION]
  tab -> space
  debug
  tab -> space
  Remove stuff that's not working at uppmax and that I don't need anyway
  added todo-txt alias
  bugfix
  Don't set linuxbrew on OS X
  added linuxbrew paths