Add onComplete functionality to TypedPipe
Add more robust test for onComplete
Add support for column projection to parquet sources
fix typo
Add TODO about extending AnyVal
Use the mixin pattern instead of the builder-like pattern
Add comments
Merge pull request #1049 from aposwolsky/develop

Add typed version of RichPipe 'using'
Merge pull request #1056 from twitter/alexlevenson/parquet-projection

Add support for column projection to parquet sources
Fix race in merging
Merge pull request #1063 from twitter/fixWithOnComplete

Fix race in merging