Add .shed.yml file to each repository.

PRO: keeps track of which directories map to which repositories.
PRO: simple uploads with planemo
  - Configure global tool shed credentials in ~/.planemo.yml
  - Upload a directory to either shed with `planemo shed_upload --shed_target [testtoolshed|toolshed]`
CON: Kind of makes it harder to upload these repositories to the tool shed without planemo (got to make sure to exclude .shed.yml from tar if tarring outside planemo).
Merge pull request #9 from jmchilton/shed_yml

Add .shed.yml file to each repository.