Increment muxy version.
Use latest muxy release
'reservoir' probability distribution bug fix.

Switch from the continuous negative exponential distribution
to the discrete geometric distribution when mean < 1.0.
Apply a fix to the math that removes probability distributions
of a negative count of events.
Increase default maintenance wait time
Rename various query utility classes to use 'spawndatastore' tag instead of 'zookeeper'
[maven-release-plugin]prepare release v4.2.11
[maven-release-plugin]prepare for next development iteration
Merge branch 'master' into tree-refactoring

Conflicts:
	hydra-data/src/main/java/com/addthis/hydra/data/tree/prop/DataReservoir.java