* 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
* Performance improvements for seeding
* Differentiating between system notification and user notifications
* Remove hard coded webhook url
* Working on system and user notifications
* notifications
* Set the currency on client if blank
* Refactor for inserting invoice defaults
* Refactor Default Invoice/Quote/Credit objects
* working on credits
* Implement mark_sent for quotes and credits
* Refactor for user
* payment notifications
* Fixes for contact request
* Fix validation for contacts
* Fixes for base repo
* Fixes for Invoice Repo
* hide password field on clientcontact
