Merge dev into feature/668-install-script-sandbox-error
Detecting if we are in a sandbox, and if so, fixing the email address of the install script error email recipient.
Merge branch 'feature/668-install-script-sandbox-error' of https://github.com/SalesforceFoundation/Cumulus into feature/668-install-script-sandbox-error
Merge dev into feature/668-install-script-sandbox-error
Merge pull request #673 from SalesforceFoundation/feature/668-install-script-sandbox-error

Feature/668 install script sandbox error
Merge dev into feature/264-settings-validator