More cleanup to allow selection in particular services to load or not load.
Added the bignumber library used by the twitter producers.
Added a missing callback at the end of DummyTokenStore.storeApplicationTokens.
Change ProducerBase to use the fetcher's tokenStore, rather than the AccountsService (which doesn't exist in this project).
Remove references to the NLPService (which doesn't exist in this project) from many of the translators.