Slide Effect: Fix default value for direction

Author: scottgonzalez

entries/slide-effect.xml

@@ -3,7 +3,7 @@
 	<title>Slide Effect</title>
 	<desc>Slides the element out of the viewport.</desc>
 	<arguments>
-		<argument name="direction" type="String" default='"both"'>
+		<argument name="direction" type="String" default='"left"'>
 			<desc>The direction of the effect. Possible values: <code>"left"</code>, <code>"right"</code>, <code>"up"</code>, <code>"down"</code>.</desc>
 		</argument>
 		<argument name="distance" type="Number" default="element's outerWidth">