doc,meta: allow Travis results for doc/comment changes
Permit the use of Travis CI results for pull requests that only change documentation or comments. This also removes node-test-pull-request-lite-pipeline from the documentation. Efforts to move all CI jobs to pipelines have stalled and it's not clear that our current Jenkins admins are enthusiastic about pipelines.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
documentation is changed or added -
commit message follows commit guidelines