Fix up prompt, oh-my-zsh modules.

zshrc

@@ -9,8 +9,7 @@ bindkey -e
 # The following lines were added by compinstall
 zstyle :compinstall filename '/home/david/.zshrc'
 
-autoload -Uz compinit
-compinit
+autoload -Uz compinit && compinit
 # End of lines added by compinstall
 
 DIRSTACKSIZE=16
@@ -20,7 +19,8 @@ case $TERM in
     ;;
 esac
 
-PS1='%n@%m:%32<...<%~%<<%# '
+autoload -U colors && colors
+PS1="%{%(!.$fg[red].$fg[green])%}%n%{$fg[white]%}@%{$fg[cyan]%}%m%{$fg[white]%}:%{$fg[green]%}%32<...<%~%<<%{$fg[white]%}%#%{$reset_color%} "
 
 . ~/.profile
 # Deduplicate the path
@@ -32,6 +32,6 @@ alias ls='ls --color'
 if [ -d $HOME/.oh-my-zsh ] ; then
   ZSH=$HOME/.oh-my-zsh
   ZSH_THEME="matir"
-  plugins=(git)
+  plugins=(git encode64 gpg-agent pep8 pip python tmux urltools)
   source $ZSH/oh-my-zsh.sh
 fi