use #!/bin/sh, any POSIX sh is ok.

Thanks: Philipp Kern <pkern@debian.org>
document alternate URL syntaxes and how to use ssh-based transfer with an identity
make main script configurable via environment
Documentation update, license clarification

use pandoc for manpage generation, drop now-redundant README
changelog for 0.6.1
Merge tag '0.6.1' into debian

release 0.6.1
Packaging changes for new upstream version

* License now GPL3+
* README removed
* add lintian override for manpage
* add Build-Depends: pandoc
rely on dh_usrlocal
Bump Standards Version to 3.9.5.
debian/watch: use github directly
Debian release 0.6.1-1

Move the ITP bug closing to the current release.