Merge branch 'release/0.3.1'
Make the map monoid more performant for mutable maps
fix up typo
Merge pull request #246 from MansurAshraf/develop

adds append method to MonoidAggregator and RingAggregator
avoid copy from mutable
Revert "avoid copy from mutable"

This reverts commit ed5a9425bc19c06cbd27041d52a2e30f17025468.
make an immtable backed map
remove benchmark
Merge pull request #245 from hansmire/develop

Make the map monoid more performant for mutable maps
Caliper integration + HyperLogLogMonoid2
get rid of uneeded SimpleScalaBenchmark.scala
added comment to Runner.scala
edited comments HllBatchCreateBenchmark.scala
fixes
fix comments
better comments for bitset
formatting
Moving Trampoline flatMap impl into trait.
Merge pull request #249 from gigamonkey/develop

Moving Trampoline flatMap impl into trait.
moved out reference jRhoW