Add peco plugin

plugins/README.markdown

@@ -14,6 +14,7 @@
 * __ndenv__  - helpers for [another node.js version manager](https://github.com/riywo/ndenv)
 * __node__ - adds locally installed NodeJS npm binary executable modules to the path
 * __percol__ - browse your fish history with [percol](https://github.com/mooz/percol)
+* __peco__ - browse your fish history with [peco](https://github.com/peco/peco)
 * __php__ - manage phphttp server 
 * __plenv__  - [plenv](https://github.com/tokuhirom/plenv) perl binary manager integration
 * __pyenv__ - [Simple Python Version Management](https://github.com/yyuu/pyenv) integration

plugins/peco/README

+Based directly on the percol plugin.
+
+Please bind peco_select_history in your favorite key.
+
+If you'd like to bind CTRL+R
+
+function fish_user_key_bindings
+  bind \cr peco_select_history
+end

plugins/peco/peco_select_history.fish

+function peco_select_history
+  history|peco|read foo
+  if [ $foo ]
+    commandline $foo
+  else
+    commandline ''
+  end
+end