Deprecated tox -downloadcache option removed
Deprecated tox -downloadcache option removed

Caching is enabled by default from pip version 6.0

More info:
https://testrun.org/tox/latest/config.html#confval-downloadcache=path
https://pip.pypa.io/en/stable/reference/pip_install/#caching

Change-Id: I01a68d3ccacbd46998a0371eb9b0d4fbdd00a71a

sapcc/python-monascaclient,openstack/python-monascaclient,sapcc/python-monascaclient,stackforge/python-monascaclient,openstack/python-monascaclient,stackforge/python-monascaclient