Updates to block setup for output.

Enabling Home page to route properly and include outputting blocks. Initial work on block types including update to database structure for blocks.

You'll need to run:
1. `composer update`
2. `php artisan migrate`

@angaither 

CC: @barryclark @DFurnes 
Yep. It's standard. What goes `up` must come `down`. Avoid issues when rolling back/resetting etc.