Fixed broken local variable assignments

Hi,
I am in emacs 24.3 and somehow my lua-mode ceased to work. I figured out that the buffer-local variable assignments  (as to be seen in the diff) did not  work.  Strange enough as I did  not see anyone with the same problem. Anyway, I fixed it for me, please feel free to merge in the  result if you find it   useful.

Regards
Juergen