[Dia2code-general] patch

[Francesco N. <fra...@gm...>]

Hi all!

I made a patch for dia2code. The patch is in attachment and it
corrects/integrates:
a) new implementation of the create_package_dir (now it generates the full path)
b) changes in java and php generators to take into account the changes in (a)
c) modified both java and c# generators to write an error and exit in
case of multiple inheritance

The modification (a) was required because the full path was not
generated (just the first part of the path). I checked also on the
example files on the web page.
The modification (c) was a "logic" error (fell free to discard that
part of the patch).

Bye!
Francesco Nidito

ps: I am working on a Perl modules generator too (it will take some time...)