Have someone besides @jmchilton do a release of planemo.

Update - current plan is

• Implement release testing Release Testing #184.
• Modify make release to test release instead of reviewing testpypi.
• Modify make release to infer default versions automatically.
• Update galaxyproject's jenkins to be able to publish to PyPI.
• Add a jenkins job to release Planemo.
• Have @davebx put together release notes and do a release.