unspec (affected by timezone)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6170 f16182fa-f095-11de-8f43-4547254af6c6
php: attempt at fixing Math.exp specifications

git-svn-id: http://haxe.googlecode.com/svn/trunk@6171 f16182fa-f095-11de-8f43-4547254af6c6