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/parser.lua

@@ -0,0 +1,42 @@
+--------------------------------------------------------------------------------
+-- 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
+--
+--------------------------------------------------------------------------------
+
+-- Export all public APIs from sub-modules, squashed into a flat spacename
+
+local MT = { __type='metalua.compiler.parser' }
+
+local MODULE_REL_NAMES = { "annot.grammar", "expr", "meta", "misc",
+                           "stat", "table", "ext" }
+
+local function new()
+    local M = {
+        lexer = require "metalua.compiler.parser.lexer" ();
+        extensions = { } }
+    for _, rel_name in ipairs(MODULE_REL_NAMES) do
+        local abs_name = "metalua.compiler.parser."..rel_name
+        local extender = require (abs_name)
+        if not M.extensions[abs_name] then
+            if type (extender) == 'function' then extender(M) end
+            M.extensions[abs_name] = extender
+        end
+    end
+    return setmetatable(M, MT)
+end
+
+return { new = new }