Improve UTF8 related examples

I found how to do this just before submitting an improvement request!

There's no explicit way to re-encode the rewritten URL when using a forwarding 
rule. This is needed with URLs that contain utf8 characters. 

Example:

<rule enabled="true">
       <from>^/(jentenavn|guttenavn)/([\p{L}\.' ]+)$</from>
       <to>/name_info.php?info1=${escape:$2}&amp;gender1=$1</to>
</rule>

Invoked url: www.nymbler.com/jentenavn/Synøve
Expected rewritten url: 
www.nymbler.com/name_info.php?info1=Syn%C3%B8ve&gender1=jentenavn

Original issue reported on code.google.com by fschro...@gmail.com on 8 Mar 2011 at 8:21

peony2012 / urlrewritefilter

Improve UTF8 related examples #88