Backport Safari bug fix to 6.x

REF #1818

The order that JS files are compiled is contributing to a bug in the
Safari browser that makes the search form input inaccessible when
auto-complete is enabled for the field.

This commit fixes the issue by updating the order of the files to match
the BL-7.x order.

Author: dkinzer

app/assets/javascripts/blacklight/blacklight.js

@@ -5,13 +5,13 @@
 //
 // These javascript files are compiled in via the Rails asset pipeline:
 //= require blacklight/core
-//= require blacklight/autofocus
+//= require blacklight/autocomplete
 //= require blacklight/bookmark_toggle
-//= require blacklight/ajax_modal
-//= require blacklight/search_context
 //= require blacklight/collapsable
 //= require blacklight/facet_load
-//= require blacklight/autocomplete
+//= require blacklight/ajax_modal
+//= require blacklight/search_context
+//= require blacklight/autofocus
 //
 //Bootstrap JS for providing collapsable tablet/mobile menu/alert boxes
 //= require bootstrap/transition