Do not keep reference to disease human phenotype (no longer needed)
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive

# By ckchen-ebi (4) and jwgwarren (1)
# Via ckchen-ebi (1) and jwgwarren (1)
* 'master' of https://github.com/mpi2/PhenotypeArchive:
  updated to distinguish between MP and MGI ids for register interest
  getting multiple procedures for parameter in PipelineIndexer - not storing them yet
  tidying up code
  moved list out of the public method so that it only get called once
  refactor code to do register interest for gene and phenotype (using generic code)