Remove tox locale overrides

* tox.ini: The LANG, LANGUAGE and LC_ALL environment overrides were
introduced originally during the testr migration in an attempt to be
conservative about the possibility that locale settings in the
calling environment could cause consistency problems for test runs.
In actuality, this should be unnecessary and any place where it does
cause issues ought to be considered an actual bug. Also, having
these in the configuration actively causes older pip to have
problems with non-ASCII content in some package metadata files under
Python 3, so drop it now.

Change-Id: Ib970a2d3cf62619378792d295b4e2e7216e05181
Closes-Bug: #1277495
Merge "Remove tox locale overrides"
Storwize/SVC: Check wwpn not None

If the storage doesn't have WWPN information for a host but gets it in
the connector, initialize_connection can fail because it does
wwpn.lower(), and wwpn can be None. Make sure it isn't before calling
lower().

Change-Id: I9923f5c87a1e596e35116bfcbf08c181b75bba35
Closes-bug: 1279061
Merge "Storwize/SVC: Check wwpn not None"