Implement HLL++ offerHashed
Merge pull request #50 from yukim/hllplus-offerHashed

Implement HLL++ offerHashed
correct ALv2 pom reference
[maven-release-plugin] prepare release v2.5.0
[maven-release-plugin] prepare for next development iteration
Fixed infinite recursive loop
Merge remote-tracking branch 'upstream/master' into loglog-unittest