Deprecate L4 and require PHP 5.6

[MarkRedeman]

I'm considering to no longer support Laraval 4 with release 2.0.0, and change the PHP requirement to 5.6.
This would make maintaining this package somewhat easier.

Since I'm not using this package for any projects of my own I would like to get some input from its users. Is there anyone who is using Laravel 4 with this package?

[wtfzdotnet]

Closing this issue seeing the age of it...