bug 1133526

modify "expires" to "expires_at", most of the changes were
already done by Guang-yee, added a pki-token-id test

Change-Id: Ib3f39620db18aaea6b0cb5d0ae9c290afd870605
Run keystone server in debug mode.

keystone currently not able be to started in
debug mode because pydev package in
pycharm-debug.egg is removed. Fix is provided
with the correct import statement.

Fixes Bug #1135306

Change-Id: I5588b768a4807b79ae1dabd7550cbee7d2c7505e
Merge "bug 1133526"
Merge "Run keystone server in debug mode."