Remove blueyed/autoenv (kennethreitz/autoenv)
Add submodule lib/zsh-autoenv @de8e2f9

* lib/zsh-autoenv 0000000...de8e2f9 (74):
  > Merge pull request #39 from sharat87/master
Makefile: improve 'Migrating to neobundles' task (untested)
Remove vim/undo: ~/.local/share/vim is used instead
git: add 'rl' alias for reflog with relative date