Upgrade RSpec/database test config.
merge dev with test_cleanup(rebase) - corrected a to_s problem in active_record storage of query (needed to force query.to_s and result.to_s)
cleaned up some debug lines
added example query to README.md (needs formatting and cleanup)
added the following to normalized_data response:

location_type :
  rooftop approximate range_interpolated geometric_center

result_type :
  street_address route intersection political country administrative_area_level_1
  administrative_area_level_2 administrative_area_level_3 colloquial_area locality
  sublocality neighborhood premise subpremise postal_code natural_feature airport
  park point_of_interest

accuracy :
  true or false
Upgrade RSpec/database test config.
Remove 'spec' Rake task; we use rspec instead.