Cleanup roaring integration code
fix pom version
add union benchmarking
address code review
Merge branch 'cleanup-roaring' of github.com:metamx/bytebuffer-collections into cleanup-roaring
clean up and improve benchmarks
use non-direct buffers
Merge branch 'master' into cleanup-roaring
separate benchmarks for different bitmap structures
also print stats on bitmap sizes
Merge pull request #4 from metamx/cleanup-roaring

Cleanup roaring integration code