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/js/cbpFWTabs.js

@@ -0,0 +1,71 @@
+/**
+ * cbpFWTabs.js v1.0.0
+ * http://www.codrops.com
+ *
+ * Licensed under the MIT license.
+ * http://www.opensource.org/licenses/mit-license.html
+ * 
+ * Copyright 2014, Codrops
+ * http://www.codrops.com
+ */
+;( function( window ) {
+	
+	'use strict';
+
+	function extend( a, b ) {
+		for( var key in b ) { 
+			if( b.hasOwnProperty( key ) ) {
+				a[key] = b[key];
+			}
+		}
+		return a;
+	}
+
+	function CBPFWTabs( el, options ) {
+		this.el = el;
+		this.options = extend( {}, this.options );
+  		extend( this.options, options );
+  		this._init();
+	}
+
+	CBPFWTabs.prototype.options = {
+		start : 0
+	};
+
+	CBPFWTabs.prototype._init = function() {
+		// tabs elems
+		this.tabs = [].slice.call( this.el.querySelectorAll( 'nav > ul > li' ) );
+		// content items
+		this.items = [].slice.call( this.el.querySelectorAll( '.content-wrap > section' ) );
+		// current index
+		this.current = -1;
+		// show current content item
+		this._show();
+		// init events
+		this._initEvents();
+	};
+
+	CBPFWTabs.prototype._initEvents = function() {
+		var self = this;
+		this.tabs.forEach( function( tab, idx ) {
+			tab.addEventListener( 'click', function( ev ) {
+				ev.preventDefault();
+				self._show( idx );
+			} );
+		} );
+	};
+
+	CBPFWTabs.prototype._show = function( idx ) {
+		if( this.current >= 0 ) {
+			this.tabs[ this.current ].className = this.items[ this.current ].className = '';
+		}
+		// change current
+		this.current = idx != undefined ? idx : this.options.start >= 0 && this.options.start < this.items.length ? this.options.start : 0;
+		this.tabs[ this.current ].className = 'tab-current';
+		this.items[ this.current ].className = 'content-current';
+	};
+
+	// add to global namespace
+	window.CBPFWTabs = CBPFWTabs;
+
+})( window );