fix models namespace issues

[ObaydaAlesawi]

I tried to add a namespace for Models, but there was a namespacing error in the controller file.

Expected import:

use App\Models\Post;

Current import:

use App\Admin\Post;

draft.yaml used file:

models:
   Models\Post:
     title: string:400
     content: longtext

 controllers:
   Admin\Post:
     index:
       query: all
       render: post.index with:posts

     store:
       validate: title, content
       save: post
       flash: post.title
       redirect: post.index

Those changes should solve the problem as I tried it locally
Thanks!

[jasonmccreary]

@nathane can you review this. I thought what you did in #121 got this...