Some simple javadocs
Merge pull request #448 from systay/2.0

Worked on the Cypher SPI
Added high level manual entry about labels as part of the data model.
Improved flawed version regex in a test, broke for 2.0
The kernel API has the ability to list labels for a node
Added getLabels support in the beans API
REST API support for listing node labels
Added the possibility to create nodes with labels
Added the possibility to create nodes with labels