i3: disable focus follow mouse
Vim: clean up the configuration
Vim: improve Python linting

- use pep8 and pylint
- show errors automatically
Vim: remove solarized color theme
vim: don't annoy me with syntastic's errors
vim: use nnoremap everywhere
i3: I said don't annoy me!
Merge branch 'master' of github.com:grn/dotfiles
xsession: use i3 instead of xmonad
i3status: initial configuration
rxvt: use 24-bit color depth

32 bits causes really slow rendering.