Merge pull request #66 from fkleedorfer/stable-blanknode-ordering

Implement stable blank node ordering

Activate javadoc plugin and sources plugin for release

Release version 1.2.5

Add Release Notes for version 1.2.5

Release version 1.2.4

Release version 1.2.3

Release version 1.2.2

Release version 1.2.1

Fix installation instructions for executable jar

Release version 1.1.0