Improving the error notification settings page.
Merge dev into feature/575-error-notifications-validation
To have a point to revert to, if necessary.
Most of the issues related to 575 fixed.
Merge branch 'feature/575-error-notifications-validation' of https://github.com/SalesforceFoundation/Cumulus into feature/575-error-notifications-validation
Merge dev into feature/575-error-notifications-validation
Merge dev into feature/575-error-notifications-validation
Merge pull request #627 from SalesforceFoundation/feature/575-error-notifications-validation

Feature/575 error notifications validation
Merge pull request #631 from SalesforceFoundation/feature/612-install-script-alternative

Feature/612 install script alternative
Merge dev into feature/612-install-script-alternative