Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/public/elite/bower_components/datatables-plugins/i18n/Serbian.lang

@@ -0,0 +1,24 @@
+/**
+ * Serbian translation (Latin alphabet)
+ *  @name Serbian (Latin)
+ *  @anchor Serbian (Latin)
+ *  @author <a href="http://mnovakovic.byteout.com">Marko Novakovic</a>
+ */
+
+{
+    "sProcessing":   "Procesiranje u toku...",
+    "sLengthMenu":   "Prikaži _MENU_ elemenata",
+    "sZeroRecords":  "Nije pronađen nijedan rezultat",
+    "sInfo":         "Prikaz _START_ do _END_ od ukupno _TOTAL_ elemenata",
+    "sInfoEmpty":    "Prikaz 0 do 0 od ukupno 0 elemenata",
+    "sInfoFiltered": "(filtrirano od ukupno _MAX_ elemenata)",
+    "sInfoPostFix":  "",
+    "sSearch":       "Pretraga:",
+    "sUrl":          "",
+    "oPaginate": {
+        "sFirst":    "Početna",
+        "sPrevious": "Prethodna",
+        "sNext":     "Sledeća",
+        "sLast":     "Poslednja"
+    }
+}