Merge pull request #2628 from colemanw/master

Normalize multiple property in CRM_Core_Form::add
Merge pull request #2629 from colemanw/master

CRM_Core_Form::add - don't mess with non-arrays
Common.js - pass data with event crmOptionsUpdated
CRM-10693 - Trigger crmLoad event when loading content
Merge pull request #2630 from colemanw/ajax

CRM-10693 - Trigger crmLoad event when loading content
Relationship form/xml tweaks