closes #1415

Signed-off-by: Kevin Risden <krisden@apache.org>

* remove 0.98, 1.0, 1.2, and 2.0 bindings
* change the 1.4 binding to be  a "HBase 1.y" binding
* add "HBase 2.y" binding and default it to the current 2.2 release
* incorporate README from 0.98 binding into current bindings
* incorporate README on bigtable testing from 1.0 binding into 1.4 binding
* incorporate implementation from 1.0 client into current bindings
* updated asynchbase binding to include parts of removed bindings it referenced
* update maprdb binding for the change in the hbase bindings
* update 1.4 and 2.2 to current releases
* use shaded client test for all hbase bindings.
* make hbase bindings consistently use log4j
* fixes #1173
* fixes #1172

closes #262
closes #181

This patch makes sure clients are closed properly on cleanup.

I also updated to the latest client version (1.11.1).

* Enforce not using Maven 3.6.2

* Use Maven 3.6.3 via Maven wrapper for Travis

Previously, if you defined maxexecutiontime and not defined operationcount
parameter (or set operationcount=0), then you were able to run YCSB for a
given period of time and measure the number of operations you get during
the load test.

Since #1323 was merged, it it not possible to use operationcount=0, as
the thread count will be set to 0 in this case and no client thread will
be created. This PR makes it possible to use operationcount=0 again.

fixes #1382 

Fixes #1371

* [rocksdb] update rocksdb.version to 6.2.2
* [rocksdb] add rocksdb.optionsfile property

* add project url, license, and developer section to pom
* add distribution information to pom.
* add source, javadoc, and signing plugins

closes #1362

Add binding based on MIT licensed client version for VoltDB

* changed the url splitting delimiter from , to ; to enable fail-over connection strings for JDBC
* included jdbc cluster connection strings in README

Co-authored-by: Sean Busbey <sean.busbey@gmail.com>

If the JDBC connection string is MsSQL, then change our SQL dialect to something MsSQL can use.

Fixes #1176

Fixes #1212


we can't use '-p durability=false' to disable durability. Instead it worked when I used '-p durability=SKIP_WAL'.

fix formatting issues showing in the re-writing batched insert `db.url` example box

[hbase10] Use Admin.tableExists instead of Table.getTableDescriptor to test whether the table exists, as the latter has been removed on master branch (#1315)

* #1249 missed headers when moving things out of Client.java
* #1242 missed header on a properties file is added
* #1286 missed header on the new pom file