Upgrade to L5 + huge refactor + more. closes #2

New stuff:
- Signup + email confirmation.
- Updated authentication strategy with remember cookies. closes #5
- New search system with some example gambits! This is cool - check out
the source. Fulltext drivers will be implemented as decorators
overriding the EloquentPostRepository’s findByContent method.
- Lay down the foundation for bootstrapping the Ember app.
- Update Web layer’s asset manager to properly publish CSS/JS files.
- Console commands to run installation migrations and seeds.

Refactoring:
- New structure: move models, repositories, commands, and events into
their own namespaces, rather than grouping by entity.
- All events are classes.
- Use L5 middleware and command bus implementations.
- Clearer use of repositories and the Active Record pattern.
Repositories are used only for retrieval of ActiveRecord objects, and
then save/delete operations are called directly on those ActiveRecords.
This way, we don’t over-abstract at the cost of Eloquent magic, but
testing is still easy.
- Refactor of Web layer so that it uses the Actions routing
architecture.
- “Actor” concept instead of depending on Laravel’s Auth.
- General cleanup!

ember/app/routes/application.js

@@ -1,7 +1,15 @@
 import Ember from 'ember';
 import ApplicationRouteMixin from 'simple-auth/mixins/application-route-mixin';
 
+import AlertMessage from 'flarum/components/ui/alert-message';
+
 export default Ember.Route.extend(ApplicationRouteMixin, {
+  activate: function() {
+    if (!Ember.isEmpty(FLARUM_ALERT)) {
+      this.controllerFor('alerts').send('alert', AlertMessage.create(FLARUM_ALERT));
+    }
+  },
+
   actions: {
     login: function() {
       this.controllerFor('login').set('error', null);
@@ -9,7 +17,7 @@ export default Ember.Route.extend(ApplicationRouteMixin, {
     },
 
     signup: function() {
-      this.controllerFor('signup').set('error', null);
+      this.controllerFor('signup').set('error', null).set('welcomeUser', null);
       this.send('showModal', 'signup');
     },
 
@@ -33,7 +41,7 @@ export default Ember.Route.extend(ApplicationRouteMixin, {
     },
 
     sessionChanged: function() {
-        this.refresh();
+      this.refresh();
     }
   }
 });