5.3.0
upgrade to @pm2/io 2.4.x + add test to verify auto restart of throwing application
#3928 reset restart delay once application is in stable mode
fix 'max' and 0 instances number + test suite
fix: stringify possible passed object via env + fix unit test retry strategy #4080 #4079
parse package.json to retrieve module version running in mem + --bail on mocha.opts to fail fast