Update DataviewLoader.js
Update DataviewLoader.js

Added feature to retrieve form name from MF instead of fixed property. This makes the dv loader usable in dynamic listen construction where we listen to 1 list but want to show different forms depending on the record.. Also did some minor refactoring to remove code duplication regarding the mx.ui.openform
appronto/DataviewLoader,appronto/DataviewLoader,appronto/DataviewLoader