[tclwebtest] Added regular expressions to [link all]

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

Hi.

Now this command accepts regular expressions to limit the obtained
results. Also two parameters where added: -onlyurl (doesn't return
the full array) and -absolute (modifies the links before returning
them). A test case was added accordingly.

-- 
 Grzegorz Adam Hankiewicz, gr...@ef.... Tel: +34-94-472 35 89.
 eFaber SL, Maria Diaz de Haro, 68, 2         http://www.efaber.net/
 48920 Portugalete, Bizkaia (SPAIN)