This is an important refactor of the way documentation generation works

* Installs luarocks WITH it's executable (easy to install other rocks if necessary)
* Use Lua supplied with luarocks
* Create Utils/luadocumentor.bat, which works with RELATIVE PATH ! -> Everybody can generate the doc
* Updated launch files accordingly

Utils/luarocks/systree/share/lua/5.1/metalua/compiler/bytecode.lua

@@ -0,0 +1,29 @@
+--------------------------------------------------------------------------------
+-- Copyright (c) 2006-2013 Fabien Fleutot and others.
+--
+-- All rights reserved.
+--
+-- This program and the accompanying materials are made available
+-- under the terms of the Eclipse Public License v1.0 which
+-- accompanies this distribution, and is available at
+-- http://www.eclipse.org/legal/epl-v10.html
+--
+-- This program and the accompanying materials are also made available
+-- under the terms of the MIT public license which accompanies this
+-- distribution, and is available at http://www.lua.org/license.html
+--
+-- Contributors:
+--     Fabien Fleutot - API and implementation
+--
+--------------------------------------------------------------------------------
+
+local compile = require 'metalua.compiler.bytecode.compile'
+local ldump   = require 'metalua.compiler.bytecode.ldump'
+
+local M = { }
+
+M.ast_to_proto      = compile.ast_to_proto
+M.proto_to_bytecode = ldump.dump_string
+M.proto_to_file     = ldump.dump_file
+
+return M