Release Notes for December 14, 2018

* Uncheck "notify customer" by default when multi-selecting * Replace the confusing "suppression" icon * Add escalation-related filters to public API * Add a private community for SEI * Add SWIFT ISAC community * Enhancements to the ConnectWise Integration * Allow MSSPs to link and unlink existing Perch customers

* Fix critical SLA issues * Fix import of newrelic * Fix import and relation name * Fix action for deleting SLAs