Correct trial

today method causes wrong behaviour. If a trial mode was changed to active subscription, user can't change subscription via swap method till the end of day.

src/Subscription.php

@@ -100,7 +100,7 @@ public function cancelled()
     public function onTrial()
     {
         if (! is_null($this->trial_ends_at)) {
-            return Carbon::today()->lt($this->trial_ends_at);
+            return Carbon::now()->lt($this->trial_ends_at);
         } else {
             return false;
         }