Rename binary from cli.php to peg

Author: asmblah

bin/peg

@@ -0,0 +1,8 @@
+#!/usr/bin/env php
+<?php
+
+require '../autoloader.php';
+
+use hafriedlander\Peg\Compiler;
+
+Compiler::cli($_SERVER['argv']);

cli.php

@@ -39,5 +39,5 @@
             "hafriedlander\\Peg": "lib"
         }
     },
-    "bin": ["cli.php"]
+    "bin": ["bin/peg"]
 }