Add will-change CSS property to slides

dist/vegas.css

@@ -44,6 +44,7 @@
     background: transparent center center no-repeat;
     -webkit-transform: translateZ(0);
             transform: translateZ(0);
+    will-change: transform, opacity;
 }
 
 body .vegas-container {

dist/vegas.js

@@ -1,6 +1,6 @@
 /*!-----------------------------------------------------------------------------
  * Vegas - Fullscreen Backgrounds and Slideshows.
- * v2.3.1 - built 2016-09-28
+ * v2.3.1 - built 2016-12-16
  * Licensed under the MIT License.
  * http://vegas.jaysalvat.com/
  * ----------------------------------------------------------------------------

src/sass/main/vegas.sass

@@ -37,6 +37,7 @@
     padding: 0
     background: transparent center center no-repeat
     transform: translateZ(0)
+    will-change: transform, opacity
 
 body .vegas-container
     overflow: hidden !important