Show validation errors on save

Fixes #17.

app/pods/protected/strains/strain-form/component.js

@@ -3,11 +3,6 @@ import Ember from 'ember';
 export default Ember.Component.extend({
   actions: {
     save: function() {
-      // Need to override the string id for some reason
-      // TODO: check this
-      let strain = this.get('strain');
-      let id = strain.get('species.id');
-      strain.set('species.id', +id);
       this.sendAction('save');
     },