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/api/fnGetHiddenNodes.js

@@ -0,0 +1,43 @@
+/**
+ * Get a list of all `dt-tag tr` nodes in the table which are not currently
+ * visible (useful for building forms).
+ *
+ * This function is marked as deprecated as using the `dt-api rows()` method in
+ * DataTables 1.10+ is preferred to this approach.
+ *
+ *  @name fnGetHiddenNodes
+ *  @summary Get the `dt-tag tr` elements which are not in the DOM
+ *  @author [Allan Jardine](http://sprymedia.co.uk)
+ *  @deprecated
+ *
+ *  @example
+ *    var table = $('#example').dataTable();
+ *    var nodes = table.fnGetHiddenNodes();
+ */
+
+jQuery.fn.dataTableExt.oApi.fnGetHiddenNodes = function ( settings )
+{
+	var nodes;
+	var display = jQuery('tbody tr', settings.nTable);
+
+	if ( jQuery.fn.dataTable.versionCheck ) {
+		// DataTables 1.10
+		var api = new jQuery.fn.dataTable.Api( settings );
+		nodes = api.rows().nodes().toArray();
+	}
+	else {
+		// 1.9-
+		nodes = this.oApi._fnGetTrNodes( settings );
+	}
+
+	/* Remove nodes which are being displayed */
+	for ( var i=0 ; i<display.length ; i++ ) {
+		var iIndex = jQuery.inArray( display[i], nodes );
+
+		if ( iIndex != -1 ) {
+			nodes.splice( iIndex, 1 );
+		}
+	}
+
+	return nodes;
+};