added meta data to statsresults root hibernate object. added new graph
images
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive.git
experiment service results first pass support for metadataGroup
metadataGroup working with stats results and unidimensional data. some
tests in for this - but need more for general stats associations as I'm
100percent on what we are displaying ie. need solid examples where I
know what the ansers should be!
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive.git

Conflicts:
	src/test/java/uk/ac/ebi/phenotype/stats/ExperimentServiceTest.java