Rakefiles: distribute demos in the "toy" archive
...so people can have a look. Beware that these demos are
not maintained even by eXept and many, many of them are
actually broken or depend on some obscure packages that
are not maintained. Too bad.
See https://swing.fit.cvut.cz/projects/stx-jv/ticket/189
source :rubygems
gem 'rake', '0.8.7'