fuck: added a basic plugin for https://github.com/nvbn/thefuck

plugins/fuck/fuck.plugin.zsh

+if [ $commands[thefuck] ]; then
+  alias fuck='eval $(thefuck $(fc -ln -1 | tail -n 1)); fc -R'
+  alias FUCK='fuck'
+else
+  echo 'thefuck is not installed, you should "pip install thefuck" first'
+fi