move field constants to DTO and use field constants for @Field
annotations
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive

* 'master' of https://github.com/mpi2/PhenotypeArchive: (22 commits)
  new impc_images core
  multivalued should all be false as all fields are nomalized and has its own document
  impc images test page works
  Tidy/comment.
  Add titles.
  Tidy; fix order links.
  Use separate css & js files.
  add separate css & js files
  Add ensembl link.
  Fix top order/contact buttons.
  Tidy summary.
  Tidy mutagenesis & lrpcr.
  Tidy.
  raname mutagenesis
  Add lrpcr.
  Add example to mutagenesis.
  Tidy; add landing page for mutagenesis test.
  Tidy; add mutagenesis css.
  first changes for mutagenesis
  Add qc pop ups
  ...
update stats documentation
add method to get stats candidates;
update documentation
updated to use copyField to include a list of fields for easier url
management
also added synonyms for child_ma_term, selected_top_level_ma_term
field type update and query typo fixed
added synonym to ma in copyField
include service/dto classes in datamodel
Merge branch 'master' of https://github.com/mpi2/PhenotypeArchive.git
Merge remote-tracking branch 'origin/master' into newstatusmethods

Conflicts:
	src/main/java/uk/ac/ebi/phenotype/service/ObservationService.java
	src/test/resources/test-config.xml