I added an optional parameter to allow the user to override a tap's sink mode. This is useful when you put flows into a cascade. http://docs.cascading.org/cascading/2.1/userguide/html/ch03s08.html#N20CA7
Base class for cascades and tests
added Typed Flatten and FlattenTo
Merge pull request #410 from twitter/feature/more-flatten

added Typed Flatten and FlattenTo
Add distinct method to RichPipe and TypedPipe, as well as corresponding tests.
Change implementation of distinct to a more type-clear way.Add docstring
Merge pull request #413 from reconditesea/klin_add_distinct

Add distinct method to RichPipe and TypedPipe
Cleanr and update RichPipe docstrings.
 Two minor changes on docstrings.
Merge pull request #417 from reconditesea/klin_richPipiDoc

Clean and update RichPipe docstrings.
Allow DelimitedScheme to override strictness and safety.
Add drop/dropWhile/take/takeWhile to KeyedList
Merge pull request #420 from reconditesea/klin_add_I414

Add drop/dropWhile/take/takeWhile to KeyedList
adding some simple matrix element filtering
Merge pull request #419 from azymnis/argyris/strictness

Allow DelimitedScheme to override strictness and safety.
Update README and CHANGES.md for releasing 0.8.5.
bump versions
Merge pull request #425 from twitter/bumpversions

Merged #425
Merge pull request #424 from reconditesea/klin_version_changes

Update README and CHANGES.md for releasing 0.8.5.
Add source[T] to JobTest for more flexible tests.