Small doco change. Nothing big
IN PROGRESS - issue CORE-4118: Implement validation editing for App
Integration WYSIWYG property editor 
https://pods.iplantcollaborative.org/jira/browse/CORE-4118

Need to move hard-coded strings to ui-resources.
Need to create human readable validator messages.
Need to add trigger click handlers on the spinner fields in order to
synchronize changes which would cause invalid condition
Need to parse the validator parameters.