Makensisw addition -> 'recompile and run'
Attached is the altered source files to allow for a 'recompile and run' option with makensisw (compiled version would be included but i found a bug with the state not always being cleared :( but the source will run bug free :))

Will allow a single click to recompile the script and then run the installer if there were no problems (includes warnings - could add to ignore warnings?)

Added it since in testing i find it gets annoying to have to do a 'recompile' and then 'test' when working on some of my bits, so why not save click and do it in one go ;)

-daz

ps also altered the functions for enabling and disabling the menus, etc to be a single function (saves duplicating the same code twice :))