initial commit for roaring bitmaps
a whole bunch of fixes and some ugly conversion code
make things actually work with roaring
make things actually work with roaring
fix things for real-time ingestion
remove crazy handler code
remove more legacy code
cleanup unused imports
fix
cleanup dead code
revert change
fix conversion
address code review
Merge pull request #823 from metamx/roaring

Configurable bitmap indexes: roaring and concise