Reduce default token duration to one hour

Keystone has reduced it's default token duration to 1 hour for
Icehouse.  The same should be done in the Keystone puppet module.

Change-Id: Ia790682a3f7693b863193cc1b60e17d971af7e75
Implements: blueprint reduce-default-token-duration
Closes-bug: 1299334
Merge "Reduce default token duration to one hour"
Change keystone mysql default charset to utf8

Changed the default charset to uf8 and the
collation to utf8_unicode_ci.

Change-Id: I3818955c8f28691432d4869fd999bcae05e592d7
fixed example for native type keystone_service

Change-Id: I8d16dd278a8b3f0327ceaa7b32d7f87fe904c4cb
Merge "fixed example for native type keystone_service"