Release 3.30.0 rc1

### Version 3.30.0

### Fixed Bugs:

- Restart gateway command line call
- mark successful payments only after payment is confirmed

### Added Features:

- Policy engine to manage and determine policies to apply to payments (alpha)
- Config initializers for adding custom behavior at bootup
- Initializer that attaches the Host Meta plugin to gatewayd's express app
- Initializer that attaches the Bridge Payments plugin to gatewayd's express app
- Database table for "configs" items, move to store configuration in SQL
- Automatically get and set last payment hash in database