Mark glance_store as being a universal wheel

Universal is used to identify pure-Python module(by bdist_wheel).
For these, it is sufficient to build a wheel with _any_ Python ABI
version and publish that to PyPI (by whatever means).

Change-Id: I40d66609277e58e8d6fee9cc98948f7b2507f75a
Imported Translations from Transifex

Change-Id: I93767d468dff780605d20e06a66ca08e5e95085d
Merge "Mark glance_store as being a universal wheel"
Updated run_tests.sh to run tests in debug mode

Start directory was not configured property in run_tests.sh which raises
error while running entire test suit using debug mode.

Updated "testrargs" value from "discover ./glance/tests" to
"discover ./tests" as default starting point to run all tests
if specific test is not provided.

Closes-Bug: 1383117
Change-Id: Ie26d6ec02c92e9ac03dd7c35d313ea377715322f
Use statvfs instead of df to get available space

We should use Python's standard library if possible.

Change-Id: I923fe11aa7ffddef6f59970f889d3e7e58f4af68
Closes-Bug: 1386060
Swift Multi-tenant store: Fix image upload

Image upload returns an E500 as the token is not being
passed to the swift client.

Change-Id: I1246661ab0bc392b5d33cb53cb81412bd633e4b3
Closes-bug: #1385213
Merge "Swift Multi-tenant store: Fix image upload"