Update config templates to Havana release

Use upstreams password-validator configuration.

COMPRESS_OFFLINE is not needed on SUSE anymore after upstream moved to
python-lesscpy (instead of nodejs / lessc).
Enable cisco external router configuration

The 'router' dashboard Django app is enabled by default and will be
used.
Add 'external_monitoring' configurable.

Allows to pass links to external workload (guest VM) monitoring solutions
(such as Nagios or Ganglia) to be displayed in the OpenStack dashboard.

Please note that is independent from Crowbar'S Nagios barclamp, which
monitors the Cloud infrastructure.
Merge pull request #112 from saschpe/release/roxy/master-havana-config

Update config templates to Havana release
Add configurability for Session timeout in Horizon

Default to 24 hours, to not enforce that many relogins.
(https://bugzilla.novell.com/show_bug.cgi?id=852965)
Merge pull request #119 from dirkmueller/session_timeout

Add configurability for Session timeout in Horizon
Fix typo breaking recipe
Merge pull request #129 from vuntz/fix-schema-migration

Fix broken recipe
Use shared memcached instance, but set a Key prefix

Swift caching hashes its keys with md5, so the only thing needed
to avoid lookup collisions is to add a unique prefix to the nova
dashboard memcache keys. The 2nd instance of memcached needed
is difficult on platforms that use systemd/sysvinit for handling
services.

This reverts commit c216e76926ae9065747ea5455da4dfc59ef0c7ba.
Merge pull request #121 from dirkmueller/memcache_cleanup

Use shared memcached instance, but set a Key prefix
Add attributes to change the password validator
Merge pull request #130 from vuntz/password-validator

Add attributes to change the password validator