ALPN protocol id enumeration

Makefile.ac bug fix

Bug fix : #54

MacOS fix

Merge pull request #51 from prbinu/prbinu-patch-1

Github action update to support Ubuntu 20.04

bug fix - duplicate json field, remove travis build manifest file

bug fix - duplicate json field, remove travis build manifest file

bug fix - duplicate json field, remove travis build manifest file

Update release.yml

Update release.yml