[BUGFIX Beta] Makes sure you can't use unregistered helpers in templates
Add support for min & max on HTML 5 inputs

This will allow support of the min & max attributes on the `number` and
`range` input types from HTML5.
Merge pull request #3898 from bcardarella/bc-min-max-for-inputs

Add support for min & max on HTML 5 inputs
Merge pull request #3897 from twokul/missing-helper-message

[BUGFIX Beta] Makes sure you can't use unregistered helpers in templates