This blog provides you an end-to-end how-to guide to develop a SAPUI5 application UI consuming a Gateway OData service on the SAP ABAP Stack.
So...JQuery is going ahead at much faster rate than SAP UI5. For the both the reasons are justified. On one hand SAP UI5 needs to make sure that its entire library stack is stable enough and on other hand we need new JQuery based features included on top of sap UI5 control. In this discusion you will solve this issue.