Adding a laravel backup artisan command

* Backups can be stored in an s3 Bucket or on disk
Adding AWS package to support backups
Adding config files for s3 backups

* AWS configuration and backup package config

* Refactoring symlink creation
Fixing symlink paths
Update to text-shadow and making it a mixin.
Updated admin index stats lang
Fixes #395
Merge pull request #393 from weerd/text-shadow-update

Update to text-shadow and making it a mixin.
Merge pull request #399 from angaither/updated-admin-index-stats

Updated admin index stats lang
Create rating table.
Updated models to add rating relationships.
Allow admins to vote on applications.
Only show the rating if app is complete & it's not rated already.
Updated rating success message.
Updated the redirect to go back to filtered complete list after vote.
Update rec complete copy on status page.
Fixes #406
Update rec sent notification.
Fixes #403
Updated app submitted status.
Fixes #402
Update error messages from int to num
Fixes #401
Added filter by rating on application index.
Refs #69
Merge pull request #409 from angaither/copy-updates

Copy updates