Externalize strings

Also some cleanup. Work on issue #41.

src/plugins/lang.js

@@ -0,0 +1,24 @@
+import Vue from 'vue'
+import VueI18n from 'vue-i18n'
+
+Vue.use(VueI18n)
+
+var messages = {}
+
+function importAll(r) {
+  return r.keys().map(res => {
+      // Remove"./"
+      const parts = res.split("/");
+      const locale = parts[1].split(".")[0];
+      messages[locale] = r(res).default;
+  });
+}
+importAll(require.context('@/assets/translations/', true, /\.js$/));
+
+
+export default new VueI18n({
+  locale: 'en',
+  fallbackLocale: 'en',
+  silentFallbackWarn: true,
+  messages: messages
+})