Suggest moving iter as an setup input

[danielenriquez59]

this way user has higher level control of optimization

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

[coveralls]

Coverage remained the same at 90.33% when pulling 94c21ba01ffa2ac0309d7eac75d57e3ffa42d9f3 on danielenriquez59:patch-4 into ae190f99860a02572f104e07752a5c4f882b539a on suavecode:develop.