#185 JOC should allow multiple email addresses with comma as delimiter

[Brendon]

Please support comma- or semicolon-delimited email addresses. Comma separation within either the TO, CC or BCC is permitted in the email specification (RFC 5322, https://tools.ietf.org/html/rfc5322#section-3.6.3).

The JOC configuration editor flags the address field as invalid with a red border. See the screenshot below.

The legacy JOE does allow entering multiple addresses with a coma as delimiter and any text editor can be used to edit the XML directly.

So this bug is just to change the field validation rules in the JOC. It should allow multiple email addresses to be entered as long as they are delimited with a comma.

[Brendon]