remove assert.js and views/tests.js from minified JS bundle (bug 990319)

lib/build.js

@@ -4,10 +4,12 @@ var path = require('path');
 var utils = require('./utils.js');
 
 var blacklist = [
+    'assert.js',
     'require.js',
     'settings_inferno.js',
     'settings_local.js',
     'settings_travis.js',
+    'tests.js',
 
     'splash.styl.css',
     'templates.js',  // Generated dynamically.