Use MemoryLocation by default in non-DOM environments

Author: mjackson

modules/locations/DefaultLocation.js

@@ -1,3 +1,5 @@
-module.exports = process.env.NODE_ENV === 'test'
+var canUseDOM = require('react/lib/ExecutionEnvironment').canUseDOM;
+
+module.exports = process.env.NODE_ENV === 'test' || !canUseDOM
   ? require('./MemoryLocation')
   : require('./HashLocation');