Retrieve cache

DataRetriever gets a cacheing layer.
TransformFunction has basic CRUD operations (and tests)
DataProcessMgmt gets new operations to support the newer data processes.
TransformPrime starts to take shape.
Coverage changes, extended types, parameter function support.

RecordDictionaryTool gets an overhaul.

Pending success from [coi_smoke](http://buildbot.oceanobservatories.org:8010/builders/coi_smoke/builds/1576) and [coi_test_refactor](http://buildbot.oceanobservatories.org:8010/builders/coi_test_refactor/builds/102)