Use Ganglia OS packages on Ubuntu 14.04 and adapt daemon control.

Use value_for_platform where possible and make check for Ubuntu version more explicit.

Switch from initctl to service for daemon control.
Balance java app servers with HAProxy.

cr https://cr.amazon.com/r/2534733/
Enable Apache 2.4 on Ubuntu 14.04.

Remove attributes for :run_dir and :default_site_config and check for version 2.2 instead of 2.4.
Let the PHP layer work with Apache 2.4 on Ubuntu 14.04 LTS.

Switch to local vars for default site config and check for version 2.2 instead of 2.4.
Let the Rails layer work with Apache 2.4 on Ubuntu 14.04 LTS.

Switch to local vars for default site config and check for version 2.2 instead of 2.4.
Let the Java layer work with Apache 2.4 on Ubuntu 14.04 LTS.

Switch to local vars for default site config and check for version 2.2 instead of 2.4.
Fix gmetad service test for non-default provider upstart.
Increase flexbility on Ruby version test.
Fix test when no CA information is given.

Move three SSL file-related tests into one.
Let logrotate do its work in group-writeable log dirs on Ubuntu 14.04.
Fix platform_family detection in templates.
Allow deploy_to to override application install location

Currently every other reference to /srv/www in the context of
application deployment is configurable. Adjusting the :deploy_to
configuration variable in an application changes the location of the
install. However in this one case in nginx uninstall /srv/www is
hard coded as the directory prefix.