* Minor fixes for user delete
* Working on notifications
* Refactor for notifications
* Fix for checking settings withe negative integers
* Set payment id to 0
* Move pdf download to client side routes
* fixes for company_user
* Fixes for company_user
* remove jobs table
* Working on notifications
* Working on notifications
* Fixes for setting group level currency id on new client
* Working on repeating headers
* Use CSS to force headers and footers
* recurring headers and footers
* Preview PDF
* Working on PDF Preview
* Client and System Notifications
* Fix for group settings currency not applying correctly.
* Split head out of design in order to reuse headers and footers
* export the designs
* Fixes for pdf_variables
* 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
* working on email throttling
* Fixes for invitaiton links
* pass custom fields as object
* Add user agent to company token
* Update company token transformer
* Remove prefix setting from CompanySettings
* Implement user agent on company token & provide better error handling for undefined relationships includes
* Fix bulk actions
* Working on updating/creating a company user
* Fixes for tests
* Provide failsafe creation of invoice invitations
* URL Links for invitations
* open up route for invitations
* Set DB by Invite
* Set DB By invitation Key
* Tests for setting DB based on user email address
* Middleware for setting db by email address
* fixes for tets
* fixes for tests
* Tests for bulk actions
* Payments API
* Fixes for tests
* 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 tests
* add additional fields for company settings
* fixes for travis
* update company settings schema
* Disable client portal
* Client Portal middleware
* Working on client portal
* hide portal
* Implement notification channgels for User and ClientContact models
* Push notifications onto queue
* Force authentication if client portal is password protected
