Web sources framework

Hi Florian,

I think it is a good idea to introduce some king of INCLUDE . command so certain code can be reused in Web Source files (.src).

I have mention this idea in Web Source Framework Discussion topic.
E.g. add following block to a separate file.

# Album
outputto "Album"
findline "class=\"profile"
findline "href=\"/artist"
regexpreplace "^.+</a>" "</a>"
findinline "</a>"
findinline " - "
sayuntil "</h1>"

INCLUDE this file in .src file. Changing included file would affect all related .src files.

Thank you,
Victor