new demo paper
more edits
Merge branch 'master' into demo-paper
more updates
more edits
Merge branch 'master' into demo-paper
hll benchmark
remove HLL version specific code outside of HyperLogLogCollector
no need for volatile references

we make no guarantees wrt threadsafety in this class
minor hll optimizations
check should be safe to move out of loop
make it clear mergeAndStoreByteRegister has no side effects
edited for flow and readability
Merge pull request #440 from metamx/igalDruid

Igal druid
fix things
Merge pull request #442 from metamx/demo-paper

Writing a demonstration paper for a conference
clean up + header
fix config manager
remove database specific code from ConfigManager
more consistent placeholder references