request post parameter optional

git-svn-id: http://haxe.googlecode.com/svn/trunk@5949 f16182fa-f095-11de-8f43-4547254af6c6
strict meta

git-svn-id: http://haxe.googlecode.com/svn/trunk@5950 f16182fa-f095-11de-8f43-4547254af6c6