Slider: Fix type for handle property in events

Fixes gh-279
Closes gh-325

(cherry picked from commit 762c12f)
(cherry picked from commit 454cc6a)
(cherry picked from commit 6fec2c1)

Author: scottgonzalez

entries/slider.xml

@@ -64,8 +64,8 @@
 			<desc>Triggered when the user starts sliding.</desc>
 			<argument name="event" type="Event"/>
 			<argument name="ui" type="Object">
-				<property name="handle" type="jQuery">
-					<desc>The jQuery object representing the handle being moved.</desc>
+				<property name="handle" type="Element">
+					<desc>The HTML element representing the handle being moved.</desc>
 				</property>
 				<property name="value" type="Number">
 					<desc>The current value of the slider.</desc>
@@ -76,8 +76,8 @@
 			<desc>Triggered on every mouse move during slide. The value provided in the event as <code>ui.value</code> represents the value that the handle will have as a result of the current movement. Canceling the event will prevent the handle from moving and the handle will continue to have its previous value.</desc>
 			<argument name="event" type="Event"/>
 			<argument name="ui" type="Object">
-				<property name="handle" type="jQuery">
-					<desc>The jQuery object representing the handle being moved.</desc>
+				<property name="handle" type="Element">
+					<desc>The HTML element representing the handle being moved.</desc>
 				</property>
 				<property name="value" type="Number">
 					<desc>The value that the handle will move to if the event is not canceled.</desc>
@@ -91,8 +91,8 @@
 			<desc>Triggered after the user slides a handle, if the value has changed; or if the value is changed programmatically via the <a href="#method-value"><code>value</code></a> method.</desc>
 			<argument name="event" type="Event"/>
 			<argument name="ui" type="Object">
-				<property name="handle" type="jQuery">
-					<desc>The jQuery object representing the handle that was changed.</desc>
+				<property name="handle" type="Element">
+					<desc>The HTML element representing the handle that was changed.</desc>
 				</property>
 				<property name="value" type="Number">
 					<desc>The current value of the slider.</desc>
@@ -103,8 +103,8 @@
 			<desc>Triggered after the user slides a handle.</desc>
 			<argument name="event" type="Event"/>
 			<argument name="ui" type="Object">
-				<property name="handle" type="jQuery">
-					<desc>The jQuery object representing the handle that was moved.</desc>
+				<property name="handle" type="Element">
+					<desc>The HTML element representing the handle that was moved.</desc>
 				</property>
 				<property name="value" type="Number">
 					<desc>The current value of the slider.</desc>