unittest for Singleton.py
fully covered MainModule.py
fully covered IsSomething.py and NdbModel.py
cover a part of Data.py
cover a part of DataNdb.py
cover duplication check related codes in DataNdb.py
querySingle and queryByDataId is commented out
cover getCanonicalData
api/Data/Data.py was split to api/Data/*
unit test for DataId request handler fails
unittest works for Hello.py
unittest for JsonRpcDispatcher in Hello.py

admin mode in JsonRpcDispatcher was removed.
unittest for api.Data.DataId
unittest for api.Data.Field
unittest for api.Data.FieldAndString
unittest for /post as postTest.py
say hello to unittest by sst
handling UTC datetime
class Relay and class Relays
awareToNative converts aware datetime class to native