(make-thread, begin-handler): Use this handler. The most important effect of this is that signals get unmasked. Previously, when a signal was thrown signals remained masked (signals get masked when a signal is taken) which influenced other threads.
poe.scm, slib.scm, tags.scm, threads.scm: Use normal list notation, instead of #/ notation.
gwish.scm, hcons.scm, lineio.scm, mapping.scm, nonblocking.scm, oldprint.scm, poe.scm, r4rs.scm, source.scm, tags.scm, test.scm, threads.scm: New address for FSF.
distribution.
