Add some basic unit tests for events
More unit tests and longer timeouts for travis-ci
Fix issue #8580
More tests
Fix typo
Merge pull request #8970 from s0undt3ch/issues/8967-pip-no-deps

Allow passing `--no-deps` to pip. Fixes #8967.
Can't send more args into the multiprocess run method
Merge pull request #8961 from olliewalsh/eventfix

Fix issue #8580
Minor formatting, accuracy, spelling.
Doc strings should be narrower.