Modified intervals to allow ability to generate any number of datetime objects.
whitespace issue
Update documentation.
remove trailing whitespace
update tests to work with python 3
use list comprehension in test, fix typo
Merge pull request #13 from sgray10/develop

Bug fix: intervals issue #11
Create CONTRIBUTORS
Update setup.py

Bumped version
Merge pull request #14 from ambitioninc/develop

Updated behavior of intervals function