Address issue #620

[danielenriquez59]

Pull Request Checklist

• Merge in the latest Develop branch changes to your branch
• Remove .pyc files from your repository:
  • Linux/Mac
    • find . -name *.pyc -delete
  • Windows
    • del /S *.pyc
• Run automatic regression and makes sure everything is passing
• Did you make a new regression test that covers your new code?
• Did you update your docstrings?
• Did you update your headers to include your name and date?
• Do a final compare with the Develop branch to be sure what you're changing

issue #620

[planes]

Thank you for the contribution!

[coveralls]

Coverage increased (+0.0006%) to 90.262% when pulling d0cdc76 on danielenriquez59:develop into dc46e12 on suavecode:develop.