Test 403 error title

Change-Id: I0e2079e485e6e668186cb477027573d9b0adb161
   Rename requires files to standard names.

    Rename tools/pip-requires to requirements.txt and tools/test-requires
    to test-requirements.txt. These are standard files, and tools in the
    general world are growing intelligence about them.

Fixes: bug #1179008
Change-Id: I1a19f0c73ab48987e2ff0dade1a57a68b65f0a22
Convert openstack-common.conf to the nicer multiline format.

No functional changes.

Change-Id: If197e1f3b3c794e342aaf7d260c107ee04687f82
Add <version> arg to keystone-manage db_sync

This optional <version> argument allows a client of db_sync to indicate to
which database version to upgrade or downgrade.

Change-Id: I3ccf45eb572a3897e5d3bc5bd17566493a55f393
Document size limits

Change-Id: I4327593fc970bd977d9fb2c48ab9eafd5586f1d0
Disable eventlet monkey-patching of DNS

This change avoids eventlet's monkey-patching of DNS resolution.
eventlet's doesn't support IPv6, for example.

The way to avoid eventlet's DNS is to set an environment
variable. The trick is the environment variable needs to be set
before eventlet is imported.

A similar change was made in nova, so this is just copying that
code and technique to Keystone.

This allows re-enabling the IPv6 tests, too.

Change-Id: I1e4d4bbfea374d386796d1505a602fd187e75c67
Revert "Set EVENTLET_NO_GREENDNS=yes in tox.ini."

We don't need this since EVENTLET_NO_GREENDNS=yes is set in
keystone.common.wsgi_server .

This reverts commit 46b224abf1c6f7c9bd579806f202a019e2695b29.

Change-Id: I96c2c567f68cdd509425245c7772196918b44b44
Improve the performance of tokens deletion for user

Provide new delete the tokens api 'delete_tokens' to support
delete all the tokens for user in one session in the sql backend. For
the kvs and memcache, I also provide the corresponding implementation.

Fix bug 1178063

Change-Id: I986a583e5900ea04e26cbdb7c49638a33818bca7
Imported Translations from Transifex

Change-Id: Icfaf58f9c2b503f3c664dc67c512de2b96ebb3ee
Fixes a typo

Change-Id: Ie5c5fd482312e44b4253076e9d8ebfe75abed378
Merge "Add <version> arg to keystone-manage db_sync"
Merge "Imported Translations from Transifex"
Merge "Convert openstack-common.conf to the nicer multiline format."
Merge "   Rename requires files to standard names."
Merge "Test 403 error title"
Merge "Disable eventlet monkey-patching of DNS"
Merge "Revert "Set EVENTLET_NO_GREENDNS=yes in tox.ini.""
Merge "Document size limits"
Merge "Fixes a typo"