Merge branch 'release/0.8.1'
Merge branch 'develop'
Hot fix for broken test in master
Merge branch 'release/0.8.2'
Merge branch 'develop'
Merge branch 'develop'
Adds support for .limit on TypedPipes (useful for debug)
Introduce a test that breaks groupAll.
implements a readable json line source
doc fix and tweak to the "normalize" method

- doc string fix for normalize
- renamed normalize's internal var to look more internal
- not clear what else to do if sum is zero, so probably ok 
to remain as an exception
merging upstream
Upgrade chill which fixes bugs in serializing traversables.
Merge pull request #303 from azymnis/argyris/failing_test

Upgrade pluck, and add a test that proves that it fixes stuff.
Merge pull request #306 from tchklovski/patch-3

doc fix and tweak to the "normalize" method
JsonLine scheme respects new fields parameter when sinking
TODO per johnynek
Merge pull request #307 from mcfunley/develop

Makes it possible to read from a JsonLine source.
Merge pull request #301 from twitter/feature/typed-limit-debug

Adds support for .limit on TypedPipes (useful for debug)