Added dem drips

Unit tests might have to change.
Minor fixes

semicolons, correct data type, etc.
fixes

done
s/steps/details
Take that unit tests! Also updated some names.
Updated README.me
Additional tests
Removed deprecation warning
Update README.md

Added examples with responses.
Merge pull request #26 from sendwithus/feature/drips-two-point-oooooooooooh

Added Drip Campaign 2.0 support