Updates comments.

modules/UI/util/JitsiPopover.js

@@ -69,7 +69,7 @@ var JitsiPopover = (function () {
     };
 
     /**
-     * Hides the popover
+     * Hides the popover if not hovered or popover is not shown.
      */
     JitsiPopover.prototype.hide = function () {
         if(!this.elementIsHovered && !this.popoverIsHovered &&
@@ -79,7 +79,7 @@ var JitsiPopover = (function () {
     };
 
     /**
-     * Hides the popover.
+     * Hides the popover and clears the document elements added by popover.
      */
     JitsiPopover.prototype.forceHide = function () {
         $(".jitsipopover").remove();