Feature request: show me a random sample of defined terms

[flaneuse]

I was looking at NIAID:ComputationalTool, and I wasn't entirely clear what featureList was. It'd be cool to not only be able to look up a specific term, but also to get a random sample of 5 or 10 terms, to give the user an idea of what values those are.

(sidenote: not sure if the ontology look up is broken, but looking up "a" as a featureList gives no results.

[marcodarko]

Will be addressed in PR #139

Can adjust test query if needed, looks like the API needs a value for query