Merge pull request #258 from jimrybarski/master

fixed problem where cursor stops after 10k results
Merge pull request #259 from jimrybarski/master

#255 Change GET to POST for lookup_user
Update basic_usage.rst

Fixes #260

[ci skip]
Fixed a docstring typo in get_authentication_tokens.
Merge pull request #261 from bool-dev/master

Fixed a docstring typo in get_authentication_tokens.
[ci skip]
Added optional sleep time between API calls made with the cursor method
Added optional sleep time between API calls made with the cursor method