Deleted unused zsh configurations/scripts
Fix insert-sudo zsh plugin behavior.
Add few zsh key-bindings.
Updated readme.
xmobarrc. Tweaks for desktop:

  * Added widgets for weather, volume & mpd.
  * Changed color of widget name for volume, weather & mpd.
  * Changed eth0 -> enp3s0.
Updated tmux-dashboard for desktop:

 * renamed window mplayer -> media.
 * show log of Xorg instead of daemon.
XMonad.hs: add mpv to list of floating clients.
Added config for rtorrent + hotkeys in xmonad.
Xinitrc: start leechcraft.
Add simple commands for converting audio files.
Use collectiongain for calculating replaygain
add alac2ogg function.
Do not calculate replaygain after alac2ogg.
Do not set -e in functions.
Rewrite audio_jobs using GNU Parallel.
Add functions for quick conversion FLAC to MP3s.
Add function to optimise all PNGs recursively in parallel.
Migrate rtorrent config to newer version.