Parquet-mr project does not cross-publish scala 2.9 or 2.11 artifacts

The parquet-scrooge artifact is only published for scala 2.10.
In order to use parquet-scrooge from scalding, we will need a 2.9 artifact, and in the near future, a 2.11 artifact as well

**Reporter**: [Alex Levenson](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=alexlevenson) / @isnotinvain

_{**Note**: *This issue was originally created as [PARQUET-95](https://issues.apache.org/jira/browse/PARQUET-95). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}