refactor ImpressService to use solrj; 
migrate ImpressDTO to conform to bean; 
make procedure text so if procedure key cant be found, use the procedure
name (no link)rather than graph fail
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive

* 'master' of https://github.com/mpi2/PhenotypeArchive:
  ManyToMany relationship between parameters and procedures
add impcMediaBaseUrl to spring properties file