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/lua/luarocks/path_cmd.lua

@@ -0,0 +1,69 @@
+
+--- @module luarocks.path_cmd
+-- Driver for the `luarocks path` command.
+local path_cmd = {}
+
+local util = require("luarocks.util")
+local cfg = require("luarocks.cfg")
+
+util.add_run_function(path_cmd)
+path_cmd.help_summary = "Return the currently configured package path."
+path_cmd.help_arguments = ""
+path_cmd.help = [[
+Returns the package path currently configured for this installation
+of LuaRocks, formatted as shell commands to update LUA_PATH and LUA_CPATH. 
+
+--bin          Adds the system path to the output
+
+--append       Appends the paths to the existing paths. Default is to prefix
+               the LR paths to the existing paths.
+
+--lr-path      Exports the Lua path (not formatted as shell command)
+
+--lr-cpath     Exports the Lua cpath (not formatted as shell command)
+
+--lr-bin       Exports the system path (not formatted as shell command)
+
+
+On Unix systems, you may run: 
+  eval `luarocks path`
+And on Windows: 
+  luarocks path > "%temp%\_lrp.bat" && call "%temp%\_lrp.bat" && del "%temp%\_lrp.bat"
+]]
+
+--- Driver function for "path" command.
+-- @return boolean This function always succeeds.
+function path_cmd.command(flags)
+   local lr_path, lr_cpath, lr_bin = cfg.package_paths(flags["tree"])
+   local path_sep = cfg.export_path_separator
+
+   if flags["lr-path"] then
+      util.printout(util.remove_path_dupes(lr_path, ';'))
+      return true
+   elseif flags["lr-cpath"] then
+      util.printout(util.remove_path_dupes(lr_cpath, ';'))
+      return true
+   elseif flags["lr-bin"] then
+      util.printout(util.remove_path_dupes(lr_bin, path_sep))
+      return true
+   end
+   
+   if flags["append"] then
+      lr_path = package.path .. ";" .. lr_path
+      lr_cpath = package.cpath .. ";" .. lr_cpath
+      lr_bin = os.getenv("PATH") .. path_sep .. lr_bin
+   else
+      lr_path =  lr_path.. ";" .. package.path
+      lr_cpath = lr_cpath .. ";" .. package.cpath
+      lr_bin = lr_bin .. path_sep .. os.getenv("PATH")
+   end
+
+   util.printout(cfg.export_lua_path:format(util.remove_path_dupes(lr_path, ';')))
+   util.printout(cfg.export_lua_cpath:format(util.remove_path_dupes(lr_cpath, ';')))
+   if flags["bin"] then
+      util.printout(cfg.export_path:format(util.remove_path_dupes(lr_bin, path_sep)))
+   end
+   return true
+end
+
+return path_cmd