Added initial support for emcc

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@682 d391954c-4287-11de-baa7-5503b21fc9cb
Small adjustments, temporary fix for emcc output paths

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@683 d391954c-4287-11de-baa7-5503b21fc9cb