* [core] Drop JDK 7 Support

Sets compiler target to 1.8
Additionally removes openjdk7 from travis build-matrix
Fixes #1033

Additionally includes lexicographic reordering of binding-dependency properties in root pom

* [core] introduce baseclass for timeseries database bindings

This base-class parses the queries generated by TimeSeriesWorkload into a format
that's usable for simple consumption.
The format has been defined through the work done by Andreas Bader (@baderas) in
https://github.com/TSDBBench/YCSB-TS.

* [core] parse debug and test properties for all Timeseries databases

* [core] Add method to define possible tagKeys for Timeseries Workloads

Some TimeSeries Databases require a "schema" up front.
To generate said schema, the tag keys used by the workload are required.
This method should be centrally available for maintainability

* [core] Provide default implementation for  operation

TimeSeries databases only rarely support deleting data. As such we can generally assume
the operation to always return a Status.NOT_IMPLEMENTED. Similarly to updating that trivial
implementation does not need to be repeated in every TimeSeriesDatabase implementation

* [core] Address review

This adds a copyright header and significant amounts of javadoc for TimeseriesDB
Furthermore occurrences of Long have been largely replaced with the primitive long
Finally an overload for signed integer values has been added for insertions

[accumulo, accumulo1.6, accumulo1.7, accumulo1.8] switch Accumulo to minor version specific bindings.

* break out accumulo modules
* add deprecation warning
* switch travis to use short hostname to get around long hostname error.

* remove mapkeeper and voldemort from command help, since we don't build them
* fix ordering of modules in root pom

closes #328

* Add oraclejdk9 to .travis.yml

* Upgrade maven-compiler-plugin

* Exclude jdk.tools from hadoop dependency

* Set minimum maven version to 3.1.0+, due to reqs for ES testing
* remove oracle jdk7 per travis-ci/travis-ci#7884
* Skip ES5 cluster spin-up if tests are skipped.
* Increase test heap for asynchbase binding from Travis 2048m to 4096m
  - https://docs.travis-ci.com/user/build-environment-updates/2017-09-06/
* temporarily remove the riak service on travis
  - currently fails w/o details
  - http://docs.basho.com/ fails to load, so I can't spin up a test node locally.

Signed-off-by: Chris Larsen <clarsen@yahoo-inc.com>

This commit removes an unrelated POM change for the original
(Elasticsearch 2) binding.

This commit bumps the Elasticsearch dependency version of the
Elasticsearch 5 binding to version 5.5.1.

The API used by googlebigtable has had quite a bit of churn.  This is the minimal set of changes required for the upgrade.

Signed-off-by: Chris Larsen <clarsen@yahoo-inc.com>

Also fix a read serialization issue with client mode driver.

Signed-off-by: Chris Larsen <clarsen@yahoo-inc.com>

Signed-off-by: Chris Larsen <clarsen@yahoo-inc.com>

[hbase12] Add HBase 1.2+ specific client that relies on the shaded client artifact provided by those versions. (#970)

[kudu] Update Kudu binding to 1.1.0, use slf4j for logging, improve table partitioning

RedundantThrows is unreliable and latest checkstyle removes it.
https://github.com/checkstyle/checkstyle/issues/5#issuecomment-52593242

[geode] Update to Apache Geode version 1.0.0-incubating.M3

[arangodb] Add ArangoDB Support