Update to 7.4.182 with Makefile mod

* Merged 7.4.182 in the Port tree

* The modification on the Makefile by sunpoet on ports svn r344966 broke the code of r344782 on 7.4.161_1.
* Solution: revert back <http://svnweb.freebsd.org/ports/head/editors/vim/Makefile?annotate=344966#l154> to <http://svnweb.freebsd.org/ports/head/editors/vim/Makefile?annotate=344782#l183>
* See also <http://svnweb.freebsd.org/ports/head/editors/vim/Makefile?r1=344782&r2=344966>
Add Makefile.diff.txt

* Add Makefile diff from Port 7.4.182
Merge branch 'master' of github.com:jj1bdx/vim-freebsd-luadyn
Update README.md

* Add fix for 7.4.182