Add license
Add some dependencies, build with Travis CI.
Initial cut of source/sink flow.  Local mode only for now.
Make sink more robust
Fix group ID
Refactor to make sources/sinks operate on Pijps.
Add tap for reading/writing lines
Remove Hadoop as we're not using it yet.
First attempt at TSV pijps.
Complete reading TSVs.
Include file name in field name.
Add CSV support.
Simplify identifiers.
Add tool for running from a JAR.
Various renamings
Add Hadoop mode.  Not yet tested.
Fix project name in README.
Various renamings
Add Hadoop mode.  Not yet tested.
Make flows inner classes.