add_syslog
Adds ability to set backends via attributes

* Also adds memcache servers attribute
Use chef role search and bind interface for memcache
case statement syntax mistake fixed
case statement syntax mistake fixed now for realz
Use openstack-common memcached_servers call
Merge pull request #39 from jaypipes/wlan

Adds ability to use different backends for different Keystone components
Merge branch 'master' of github.com:att-cloud/cookbook-keystone into add_syslog

Conflicts:
	templates/default/keystone.conf.erb
Merge pull request #38 from jhtran/add_syslog

add_syslog
Adds a separate resource registration recipe

In order to make chef-client runs simpler and faster, we break
out a separate registration recipe that registers users, tenants,
services, endpoints, roles, etc with the Keystone server. This
recipe only needs to be in the run_list of one controller node
instead of all of them, which currently have the server recipe
in their runlists.

Removes the admin password/tenant/username stuff from the
credentials and register Chef providers and just replaces that
round-trip request to Keystone with the secret bootstrap token,
which should speed up the registration requests substantially.