laravel/laravel — pull request #749 by franzliedke (2012-06-02 15:11:20+00:00)
Title: Allow field names in before/after validators

Sparked by [this forum question](http://forums.laravel.com/viewtopic.php?id=1328), I decided to implement this, as it is pretty simple.

This is not yet complete, as I was hoping for some discussion before doing more work on this.

What is remaining:
- documentation / PHPDoc (?)
- possible infinite recursion if you have a rule pointing to another field with a value equaling the name of the first field (on which the rule was found on)
- what about field names like "yesterday" or something else that will be interpreted by `strtotime()`?