[VOTE] Release Apache DataSketches-java 1.2.0-incubating-RC1

[leerho <le...@gmail.com>]

### Significant Merge Speed Improvements to HLL ###

Hello Apache DataSketches PPMC and Community,

1. This is a call for vote to release Apache DataSketches-java version:
 1.1.0-incubating-RC1

    NOTE 1: This is the core Java component of the DataSketches library
that includes all the sketch algorithms in production-ready packages. These
sketches can be called directly from this component or used in conjunction
with the adaptor components such as Hadoop Pig, Hadoop Hive, or the
aggregator adaptors built into Apache Druid.

    NOTE 2: This release contains some signifiant merge speed performance
improvements. See the relevant GitHub web site for more details.

2. Source repository:
    - https://github.com/apache/incubator-datasketches-java

    Git Tag for this release:
    -
https://github.com/apache/incubator-datasketches-java/tree/1.2.0-incubating-RC1
on branch 1.2.X-incubating

    Git HashId for this release starts with: bcefa34

3. The Release Candidate / Zip Repository:
    -
https://dist.apache.org/repos/dist/dev/incubator/datasketches/java/1.2.0-incubating-RC1/

    The public signing key can be found in the KEYS file:
    - https://dist.apache.org/repos/dist/dev/incubator/datasketches/KEYS

    The artifacts have been signed with --keyid-format SHORT : 8CD4A902

4. Repository: Maven Central [Nexus](http://repository.apache.org) (Jar
Artifacts):
    -
https://repository.apache.org/content/groups/staging/org/apache/datasketches/datasketches-java/1.2.0-incubating/

5. Build & Test Guide:
    -
https://github.com/apache/incubator-datasketches-java/blob/1.2.0-incubating-RC1/README.md

6. The vote will be performed in two stages:
   - This letter will be published on dev@ and remain open for at least 72
hours and at least 3 (+1) PPMC votes or a majority of (+1) are acquired.
All PPMC members including Mentors can vote. However, a negative vote from
a Mentor will cancel this voting process.

   - After it passes the first stage, the summary of that vote and the key
information from this letter will be published on general@incubator and
remain open for at least 72 hours and at least 3 (+1) IPMC votes or a
majority of (+1) are acquired.

Please vote accordingly:

[ ] +1 approve
[ ] +0 no opinion
[ ] -1 disapprove with the reason

Thanks,
Lee Rhodes
leerho@apache.org