* Remove unnecessary save() on invoice
* Update copyright
* Working on Credit Repository
* Implement credits as a paymentable entity
* Add credit_id to transformer
* fix rules for update payment
* Fix random deleted_at keys in transformers
* Fix for password_protect check
* Fixes for client portal localization
* Replace Invoice Ninja Logo with user defined logo and website URL in client portal
* Minor Fixes
* Refactor for invitations on invoices
* Fixes for settings
* Fixes for datatables
* Implement a BaseModel
* Working on reusable header data model
* Working on adding session variables
* Clean up header data
* Random Data Seeder
* working on searching datatables across relationships.
* Working on transforming primary keys between client and server facinglogic
* Updated assets