Nosqldb re-added to the build and checkstyle cleanup

Accumulo cleanup and tests

closes #340

Dynamodb API update

Update README.md for version 0.6.0

[jdbc] checkstyle updates

Orientdb cleanup

* Cleaned up javadoc and comments
* Backed out unnecessary line breaks
* Updated license

Closes #494

Orientdb checkstyle

* Rabased pull/489/head (@allanbank) to master
* Backed out unnecessary line breaks for 120 char limit
* Enforced checkstyle on new code
  * Was required to make db variable private, updated in tests
  * Removed TODO

Closes #489

[orientdb] Added remote connection capabilties

Merge pull request #559 from DevFactory/staging/primitives-should-not-be-boxed-just-for-string-conversion-fix-6

Primitives should not be boxed just for "String" conversion

[solr] Added tests for Solr binding

[solr] Adding Apache Solr Support

updating readme

updating package info

perfecting logic for http solr clients for all operations

renamed properties, tested cloud mode and cleaned code

removed dependency on dynamic field names, updated readme

now enforcing checkstyle

adding solr artifact

removing test cases relying on external dependencies

removed unused maven dependencies, added batch mode support, all try blocks now catch eplicit exceptions, Query/UpdateResponse status codes are handled more granularly, updated readme, added sample schema.xml file to support default field names in ycsb client, updated all license headers to 2016, using SolrClient object as primary client type regardless if Solr is running in Cloud or Stand-alone mode

cleaned code and config files, now accepting a solr base url property, simplified sample schema.xml file, renamed class to SolrClient, now updating documents atomically, added batch support to delete method

updated new line spacing of pom file comments

removed sample schema file, updated readme with more indepth explanation on running/setting up the solr-binding

removed some code lines no longer in use

renamed zookeeper param name, now throwing caught exceptions where appropriate, debug messages are now being logged on stderr

now returning an appropriate error if we receive an unexpected response from solr server, repeated calls to getResults is no longer

now using singletonMap to store update params in, fixed typo and missing id field in sample config in README

[orientdb] properties cleanup

Added log4j properties for mongodb to not show debug output as default

Cleaner handling of properties.
Updated documentation of available properties.
Removed default database url.

Making progress towards #539

[orientdb] version bump to 2.1.8

Merge pull request #564 from DevFactory/staging/source-files-should-not-have-any-duplicated-blocks-fix-8

Source files should not have any duplicated blocks

[elasticsearch] Bump version from 0.19.8 to 2.1.1

The version bump required some fixes because of changes to the OrientDB
API as well as to accomodate for changes in thread safety for testing.

[accumulo] Accumulo binding does not work in 0.5.0 release

[orientdb] added test cases

Merge pull request #556 from DevFactory/staging/entrySet-should-be-iterated-when-both-the-key-and-value-are-needed-fix-4

"entrySet()" should be iterated when both the key and value are needed