Merge pull request #362 from IBMStreams/develop

Merge latest changes

Merge pull request #359 from IBMStreams/develop

Update of Paho MQTT library and version bump

Merge pull request #357 from IBMStreams/develop

Merge latest changes from develop to master

Merge pull request #355 from IBMStreams/develop

Merge latest changes

Merge pull request #353 from IBMStreams/develop

Merge latest develop changes into master

Version bump v5.3.11 -> v5.3.12

Merge pull request #349 from IBMStreams/develop

Merge latest changes to master

Merge pull request #344 from IBMStreams/develop

Merge latest changes from develop to master

SPLDoc update (issue #341) and version bump v5.3.8 -> v5.3.9

Minor documentation clean-up

- Removing 'InfoSphere' name in documentation
- Version bump v5.3.7 -> v5.3.8