Arch: aurman, GRUB config aliases

Fixed #64 by installing xsel.

Vim:
- PrettyXML
- disable airline while fixing Unicode not showing up on Arch

dotfiles/zshrc

@@ -71,7 +71,8 @@ source ~/linux-config/aliases/zsh_aliases
 # export MANPATH="/usr/local/man:$MANPATH"
 
 # You may need to manually set your language environment
-# export LANG=en_US.UTF-8
+export LANG=en_US.UTF-8
+export LC_MESSAGES="C"
 
 # Preferred editor for local and remote sessions
 # if [[ -n $SSH_CONNECTION ]]; then