Passing same parameters through setMoment as is expected in setDate

preventOnSelect is not supported by setMoment, even though setDate allows it to be passed.  Ideally, both methods should support the same number of parameters.
Update README.md
Update README.md
Merge branch 'master' of https://github.com/elwayman02/Pikaday into elwayman02-master
Simplify documentation a bit, closes #73