#18 duplicate synonyms in term info

[Jim Balhoff]

For some terms the synonyms are put in the list twice:

http://phenoscape-dev.nescent.org/OBD-WS/term/TAO:0000563

"synonyms":[{"name":"pectoral fin muscle"},{"name":"pectoral fin muscle"}]

In the ontology there is only one synonym "pectoral fin muscle".