Laravel 5.3 Package Shift

[m1guelpf]

This pull request includes the changes for upgrading your Laravel Package to Laravel 5.3. Feel free to commit any additional changes to the shift-2466 branch.

Before merging, you should:

• Checkout the shift-2466 branch
• Review all pull request comments for additional changes
• Run composer update (if the pre-commands fail, add --no-scripts)
• Thoroughly test your code

This Shift is still in beta. If there were changes you feel could have been automated, please send your feedback to shift@laravelshift.com or via Twitter.

[m1guelpf]

❌ Laravel 5.3 requires PHP 5.6.4+. You have an existing dependency for PHP in your composer.json. Ensure it meets the new version requirement of >=5.6.4.