Ferma 2.0.6 Released

[Jeffrey Freeman]

Ferma 2.0.6 has been released! The following is a list of the newest features:

* Added the ability to use the @Incidence annotation on add* methods. These work the same as with adjacency but return the edge rather than the node.
* Added additional metadata to the pom file.
* Added multi-threaded transaction support.
* Added support for tinkerpop style transaction handling.
* Added additional argument sanity checking for fail-fast exceptions.
* Implemented WrappedGraph interface for DelegatingFramedGraph.
* The pom site goal now executes successfully.
* Added badges to the readme to report project state.