ReduceOperations.hyperLogLog
make hyperLogLogMap public with configurable serializer
fix unit test
Merge branch 'develop' of https://github.com/twitter/scalding into hll-aggregate
minor tweaks from oscar
Merge branch 'develop' of https://github.com/twitter/scalding into hll-aggregate
improved hyperLogLog reducer methods
Adds support for .limit on TypedPipes (useful for debug)
Introduce a test that breaks groupAll.
add "shuffle" method

Would be useful to have "shuffle" which ensures rows are in random 
order -- so future `take` and `foldLeft` operations get random data
Looking for guidance on implementation: 
- should reducers be implicit (so one calls shuffle(){ _.reducers(50) } ?)
- should refactor groupRandomly to rely on modified shuffleAux?
- should seed be implicit?
- does grouping by shard, as in groupRandomly guarantee that each 
reducer gets one shard?
Merge branch 'master' of https://github.com/twitter/scalding into hll-aggregate
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
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
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)
Fixes issue 280
added tests; shard now supports seed, shuffle uses shard
added test; shard now supports seed, shuffle uses shard