rm gen_travis_yml.php
travis
travis: fix build
PHP 8 compatibility
drop dep on ext-propro (dysfunctional with PHP 8)
move to PHP-7.4 as current GA
travis: test against 7.4, but allow failures until stablilized
tests: pecl/event needs ext/socket by default
tests: switch from pecl-ev to pecl-event
travis
travis: condense build matrix
travis
travis: xenial
travis: matrix.include trusty/xenial
travis: allow_failures
travis: allow failures with PHP-master
update travis
travis: rebuild deps on master
travis: clean on build failure
add 7.3; reconfigure for master