closes #136

Signed-off-by: Sean Busbey <sean.busbey@gmail.com>

[core workload] Data Correctness Checking

TransportClient support for connecting to remote elastic search clusters

Workload template

[version] update to 0.2.0-SNAPSHOT.

* Need a SNAPSHOT version because non-SNAPSHOT is reserved for actual releases.
* Increment minor version per pre-1.0 guidelines from the Version Numbers guide

Fixes #236.

[Mongodb] merge adds Async mongodb driver, update normal driver to talk to mongo 2 and 3 clusters.

Add autoflush property to HBaseClient

to the 3.0 driver from MongoDB Inc. and updated to the new Document and
fluent APIs.

URI to configure the client. Old properties are deprecated and but will
be added to the URI if present and the URI does not already contain a
value for the setting.

When running workloads that use the "insert" operation, we get a lot of
duplicate key exceptions from the server. Changing to upsert to avoid
these exceptions.

Changed reference to original forked repo which is not maintained to this repo to avoid conflicting instructions.   Might want to do that for top level README as well.

example

No need to call getError on writeResult. any errors for writeConcern level will throw exceptions and be caught in catch block

Allow setting the java version to use via the "JAVA_HOME" environment
variable. Fixes #252.

update version of MongoDB driver

Remove hard-coded property key strings in favour of string constants