InterMine 3.1.1

A small patch release with some important bug fixes.

And a big thanks to our contributors: @sammyjava, @JoelRichardson and @nuin!!

#1726 - Add system templates end point for converter templates.
#1732 - Web service bug in /templates?format=json
#1770 - Default query config should be in json
#1786 - GFF3: add header to record
#1796 - GFF3SequenceHandler - add docs and pass in feature object
#1811 - webservice xml queries failing with greater and less than operators
#1828 - DNaseI_hypersensitive_site (SO:0000685) misspelled
#1833 - Data types in NCBI GFF that are not in the sequence ontology
#1847 - Error parsing DOES NOT CONTAIN constraint
#1887 - OMIM: fix link outs
#1902 - Gradle: need /themes directory to merge correctly
#1906 - Enrichment widget: update link to GO (humanmine and flymine)
#1914 - InterPro DTD version
#1956 - Autocomplete fails to build: missing content stream
#1977 - publication with null title
#1982 - Need upgrade path for biojava
#1983 - Fix log library dependency conflict
#1989 - Spelling fix on genomicRegionSearchOptionsBase.jsp
#1992 - Remove Yahoo login link
#1994 - HumanMine - gene summaries from NCBI
#1995 - Panther - Entry only has protein accession and the taxon id in place of the gene identifier.
#1996 - OMIM - failed on bad line
#1999 - HPO errors - can't handle "created_by" metadata
#2000 - Add UniProt xref file to data download script
#2006 - Updated gretty.plugin URL