subtests...run: Add multiple --names test

Signed-off-by: Chris Evich <cevich@redhat.com>
config_defaults: Minor tweaks

*  Deprecated try_remove_after_test mirror try_remove_after_test value
*  Add back dropped envcheck_ignore_fqin option

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...tag: Small exception message fix.

Signed-off-by: Chris Evich <cevich@redhat.com>
Docker: Fix mocks for docs + unittests

*  Also fixed reference to ``autotest.client.shared.utils`` (mixin)
   to the proper ``autotest.client.utils``.

Signed-off-by: Chris Evich <cevich@redhat.com>
Merge pull request #189 from cevich/runrunrun

subtests...run: Add multiple --names test