copy statcounter into thunder, update to only calc requested stats
working statcounter implementation
fix for implicit casting to float in stats max/min methods
Merge branch '0.4.x' into 0.4.x_statcounter
remove commented-out code, add note on statcounter.py being adapted from pyspark
Merge pull request #61 from industrial-sloth/0.4.x_statcounter

0.4.x: statcounter