2.15 fixes Cookie issue and adds more HTML Versions support

With HTMLObject 2.15 you can now specify what version of HTML you would like to use (4.0, 4.01) and what DTD to use (loose, strict or frameset).

It now defaults to being HTML 4.01 loose.

An issue with the cookies being returned from ReadCookie was fixed (uneeded \'s were on some characters).