Remove sample ACL config files.

Acl is now a separate optional plugin and not part of core.
Merge pull request #65 from ADmad/acl-config

Remove sample ACL config files.
CamelCasing controller name in routes.php
Change comment about best practice for writing out routes manually
Merge pull request #68 from ceeram/routes

Change comment about best practice for writing out routes manually
Merge pull request #69 from cakephp/camelcased-routes

CamelCasing controller name in routes.php
Add default flash elements
Escape messages by default
Remove ids from flash elements
Merge pull request #70 from bcrowe/3.0-default-flashes

3.0 - Add default flash elements
Use Flash helper for default and error layouts
Merge pull request #71 from bcrowe/3.0-flash

Use Flash helper for default and error layouts
Remove Acl config as it's not part of core anymore.