Got to the bottom of requirements weirdness

The virtualenv initially did weird things when installing dependencies,
a reinstall fixed it.
Add BZ marks to host analysis
Added verbosity to dockerbot pytest runs
Merge pull request #1323 from psav/verbose_pytest

Added verbosity to dockerbot pytest runs
Merge pull request #1321 from jkrocil/bz-host-analysis

Add BZ marks to host analysis