debian/watch: follow 0.4.x branch
Imported Upstream version 0.4.16
Merge tag 'upstream/0.4.16'

Upstream version 0.4.16
debian/copyright: Update for new upstream release.
changelog for 0.4.16-1
Merge branch 'master' into wheezy
changelog for 0.4.16-1~deb7u1