0.10.1 Sep 7, 2017: HLL Sketch Extended for Off-Heap Operation

• This release extends the prior HLL release 0.10.0 to also allow the HLL sketch to operate off-heap leveraging the new Memory package (located in the DataSketches/Memory repository. This capability is critical for large systems that must manage millions of sketches as updatable fields located in off-heap (native) memory. The other sketches in the library that also enable this off-heap operation include the Theta sketch as well as the Quantiles sketch.