1. version was 0.0.2 in setup.py, which means we didn't get the dist/ files we expected.
2. We need 'bdist_wheel' to make the .whl file.
3. --no-site-packaged was apparently removed in 0.20.0, and was default long before that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This includes some real bugfixes, since it noticed some places we were
being loose with different types!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>