Fixed Select2 jumping around in Chrome

This fixes select2#2769, where Select2 will jump around because of how
focus moves to the original element when selections are made.

Because absolute positioning pushed the original element out of the
viewport, bringing it back into the viewport should be the best
fix.

Author: kevin-brown

select2.css

@@ -667,7 +667,7 @@ html[dir="rtl"] .select2-container-multi .select2-search-choice-close {
     margin: 0 !important;
     padding: 0 !important;
     overflow: hidden !important;
-    position: absolute !important;
+    position: static !important;
     outline: 0 !important;
     left: 0px !important;
     top: 0px !important;