Corrected web/node detection

Author: rkoeninger

lib/shen.js

@@ -1,6 +1,6 @@
 module.exports = class Shen {
   constructor (options = {}) {
-    const target = typeof process === undefined ? 'web' : 'node';
+    const target = typeof process === 'undefined' ? 'web' : 'node';
     const backend = require('./backend.js');
     const config = require(`./config.${target}.js`);
     const kernel = require('./kernel.js');