#### Submisison Checklist

- [ ] Run unit tests: `./runTests.py test/unit`
- [ ] Run cpplint: `make cpplint`
- [ ] Declare copyright holder and open-source license: see below

#### Summary:

#### Intended Effect:

#### How to Verify:

#### Side Effects:

#### Documentation:

#### Reviewer Suggestions: 

#### Copyright and Licensing

Please list the copyright holder for the work you are submitting (this will be you or your assignee, such as a university or company):

By submitting this pull request, the copyright holder is agreeing to license the submitted work under the following licenses:
- Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)
- Documentation: CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
