Removing the need for System.Web reference

[GoogleCodeExporter]

I had a need to avoid the inclusion of System.Web.
Since UnicodeToHTMLEncoding method is the only part that relies on System.web, 
it can be replaced by something like Rick Strahl's HtmlEncode class (see 
http://csharpfeeds.com/post/10343/Html_and_Uri_String_Encoding_without_System.We
b.aspx).

Doron  

Original issue reported on code.google.com by dmilchta...@gmail.com on 7 Nov 2010 at 8:09