Version 4.0.9
- Change: re-enabled multiple source/destination in flow
- Fix: forward port of #845, send state down messages on peer removal
orginal patch: Andre Kampert - Feature: add != test of flows
patch by: dhammika - Fix: Read pipename from env file rather than using default
patch by: Craig Milne - Fix: using teardown could crash exabgp
patch by: Matthias Wichtlhuber - Fix: use of label and rd with announce attributes