MurmurHash3, cleanup
set matrix size
more scalable way to featurize, by first featurizing a sample for dictionary, only keeping top features
fixes
more distributed filtering of features, by finding true minCount cutoff before collecting
store some intermediate rdds, and try to trim in memory size of dictionary
take top features by full name, not by hash.  otherwise we end up with a stupid number of collisions, even in the filtered dictionary
name, dont sample until after weve got it persisted
attempt at a quick fix for collisions ... maybe I am using murmur3 wrong.  or maybe we need a better hash func
remove some dead code
fix scalatest deprecation warnings
Merge branch 'master' into matt/dev
copious quopying to counts