Import 1.4.2
This should bring us up to date with the latest upstream release.
The only non-upstream changes I've made were:
- mention in
debian/README.debianthat updating the changelog is part of the process of importing a new upstream release. - update
debian/changelogto mention 1.4.2.
For the latter I replaced the existing changelog entry since the 1.4.0-1 release never actually happened; I think that's probably the right thing to do?