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
Fixes status page help text not displaying.
Also fixed recs not showing as complete.
Fixes #454
Only create new recs when email is set.
Fixes #455
Merge pull request #458 from angaither/empty-recs-saving

Only create new recs when email is set.
This removes all empty rec & rec tokens
they were created during the great bug of columbus day weekend.
Fixes #456
Merge pull request #459 from angaither/remove-empty-rec-rows

This removes all empty rec & rec tokens
Adding the failed_jobs table to queue config
Adding backup command to capistrano
Merge pull request #378 from DoSomething/backup

Adding a laravel backup artisan command
Merge pull request #460 from DoSomething/failed-job

Adding the failed_jobs table to queue config
Merge pull request #457 from angaither/fix-status-help-text

Fixes status page help text not displaying.
Initial ground work for user delete.
Need to add confirmation.
Delete recs & tokens.