DirManager.makeFileDir fix (didn't commit run.n, since not on Haxe 2)

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@706 d391954c-4287-11de-baa7-5503b21fc9cb
Added more HXCPP memory methods

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@707 d391954c-4287-11de-baa7-5503b21fc9cb
Fix Linux compile warnings

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@708 d391954c-4287-11de-baa7-5503b21fc9cb
Array __SetSize need not be virtual.  Add __SetSizeExact, which sets the size of the allocated buffer too.  Constructing an array from an unrelated Dynamic now sets it to null.

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@709 d391954c-4287-11de-baa7-5503b21fc9cb