task/ta-npe-002-10 -- introduce new nparcel/service.py module which acts
as a base for the various B2C services such as loader, reminder and
primary elect

doc/source/modules/service.rst
nparcel/service.py
nparcel/tests/test_service.py
* new files

Makefile
doc/source/modules/index.rst
nparcel/__init__.py
nparcel/tests/__init__.py
* integration