Make popover title required rather than description

Author: kamranahmedse

src/core/popover.js

@@ -120,7 +120,7 @@ export default class Popover extends Element {
 
     // Set the title and descriptions
     this.titleNode.innerHTML = this.options.title;
-    this.descriptionNode.innerHTML = this.options.description;
+    this.descriptionNode.innerHTML = this.options.description || '';
 
     this.renderButtons();
 

src/index.js

@@ -295,7 +295,7 @@ export default class Driver {
     }
 
     let popover = null;
-    if (elementOptions.popover && elementOptions.popover.description) {
+    if (elementOptions.popover && elementOptions.popover.title) {
       const popoverOptions = {
         ...this.options,
         ...elementOptions.popover,