Amend spacing and code conventions.

4 spaces tabs and following Zend standards.
Merge pull request #5 from pabloezequiel/master

Amend spacing and code conventions.
Improvement, fix : Parse error: syntax error, unexpected T_OBJECT_OPERATOR
Merge pull request #7 from sirsquall/master

Improvement, fix : Parse error: syntax error, unexpected T_OBJECT_OPERAT...
Merge branch 'master' of github.com:davibennun/laravel-push-notification

Conflicts:
	src/Davibennun/LaravelPushNotification/App.php
	src/Davibennun/LaravelPushNotification/PushNotification.php