[tclwebtest] HTML entities should be substituted in urls

[Grzegorz A. H. <gr...@ef...>]

Hi.

Commited the following patch, because HTML entities have to be substituted
by the user agent before doing the url request:

  http://validator.w3.org/docs/errors.html#bad-entity
  
-- 
 Grzegorz Adam Hankiewicz, gr...@ef.... Tel: +34-94-472 35 89.
 eFaber SL, Maria Diaz de Haro, 68, 2         http://www.efaber.net/
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