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/fnFindCellRowNodes.js

@@ -0,0 +1,55 @@
+/**
+ * Much like `fnFindCellRowIndexes` this plug-in will search a table for
+ * matching data (optionally the search can be restricted to a single column),
+ * but in this case the returned array contains `dt-tag tr` nodes of the
+ * matching rows, rather than data indexes.
+ *
+ *  @name fnFindCellRowNodes
+ *  @summary Search for data, returning row nodes
+ *  @author [Allan Jardine](http://sprymedia.co.uk)
+ *
+ *  @param {string} sSearch Data to search for
+ *  @param {integer} [iColumn=null] Limit search to this column
+ *  @returns {array} Array of `dt-tag tr` element with this data
+ *
+ *  @example
+ *    $(document).ready(function() {
+ *        var table = $('#example').dataTable();
+ *    
+ *        var a = table.fnFindCellRowNodes( '1.7' );    // Search all columns
+ *    
+ *        var b = table.fnFindCellRowNodes( '1.7', 3 ); // Search only column 3
+ *    } );
+ */
+
+jQuery.fn.dataTableExt.oApi.fnFindCellRowNodes = function ( oSettings, sSearch, iColumn )
+{
+	var
+		i,iLen, j, jLen, val,
+		aOut = [], aData,
+		columns = oSettings.aoColumns;
+
+	for ( i=0, iLen=oSettings.aoData.length ; i<iLen ; i++ )
+	{
+		aData = oSettings.aoData[i]._aData;
+
+		if ( iColumn === undefined )
+		{
+			for ( j=0, jLen=columns.length ; j<jLen ; j++ )
+			{
+				val = this.fnGetData(i, j);
+
+				if ( val == sSearch )
+				{
+					aOut.push( oSettings.aoData[i].nTr );
+				}
+			}
+		}
+		else if (this.fnGetData(i, iColumn) == sSearch )
+		{
+			aOut.push( oSettings.aoData[i].nTr );
+		}
+	}
+
+	return aOut;
+};