This release includes critical bugfixes for the 15.0 release:

- Allow accepting the license on non-interactive Windows sessions
- Resolve license acceptance failures on Windows 2012 R2
- Improve some `knife` and `chef-client` help text
- Properly handle session_timeout default value in `knife bootstrap`
- Avoid failures due to Train::Transports::SSHFailed class not being loaded in `knife bootstrap`
- Resolve failures using the ca_trust_file option with `knife bootstrap`