take out ref to Env in spec helper and update env service spec
take out refs ENV in api service spec
take out refs to Env in gram parser spec
take out refs to Env in tweet parser spec
clean up spec_helper of commented out stuff
Merge pull request #69 from anirudh-eka/take_out_ref_to_env_in_tests

Take out ref to env in tests except for environment_service_spec