[Help-smalltalk] <file> tags now optional for fileins

[Paolo Bonzini]

I committed a patch to make <file> optional for assets already pointed 
to by a <filein> tag.  I also updated all package.xml files in the 
distribution except for VisualGST.

However, I suggest that those of you that use PackageBuilder.st do _not_ 
update it to remove now superfluous <file> tags---not until I make a new 
release at least, and for packages such as Iliad, for a little longer 
probably.

Paolo