remove very old and unused runit cookbook
Make PassengerFriendlyErrorPages configurable.

cr https://cr.amazon.com/r/1909780/
Add missing 'depends' entries to metadata files.
Adapt to the fact that `directory nil` blows up under Chef 11.8.
Remove deprecated empty recipe.
With two separate Chef runs and using chef-client instead of chef-solo, tweaking the run list does not work anymore.
Determine the site-cookbooks dir by parsing the client.rb, as the cookbook_path is no longer available tru Chef::Config.
First draft of Berkshelf support.
Use the agent's berkshelf.
Put berkshelf cookbooks in /var/lib/aws/opsworks/berkshelf-cookbooks.

cr https://cr.amazon.com/r/2158215/
Use a custom berkshelf package instead of the one from the agent's bundle.

cr https://cr.amazon.com/r/2162684/
Set Rails related node attributes correctly, add a missing definitions dependency, and some small cleanup.

Use normal instead of node.set when overriding node attributes in attribute files.
Update Readme.md.

Document the release- and master- branches. Deprecate the master branch.
Add 'attributes/customize.rb'.

This file is added to enable improved user experience when overriding
attributes. Today customers often override the complete file, which will
back-fire when OpsWorks introduces new attributes.
By moving out customer attribute changes to separate files, we make it
easier for the customer to keep track of their changes. It is also
easier for OpsWorks to improve the cookbooks.

Once agreed, all cookbooks would have a 'attributes/customize.rb'.
Introduce customize.rb in all cookbooks.

Conflicts:
	passenger_apache2/attributes/passenger.rb
	runit/attributes/default.rb
Make nginx 'proxy_read_timeout' and 'proxy_send_timeout' configurable
for Unicorn web apps.
use the custom ganglia package versions instead of the package architecture to check if it's installed
Improve log message.
Support custom log_format on nginx.

https://github.com/aws/opsworks-cookbooks/pull/81

Add guard if node structure access returns nil.
Parametrize apache log level.