Install cov-core in dev (see bootstrap.sh) and test (tox, Travis) envs. Required by coverage plugin
Install cov-core in dev (see bootstrap.sh) and test (tox, Travis) envs. Required by coverage plugin

ptthiem/nose2,ojengwa/nose2,ezigman/nose2,ojengwa/nose2,ptthiem/nose2,little-dude/nose2,little-dude/nose2,ezigman/nose2