Cleaned up load_winrm_deps, added missing option details for secret, and changed secret file from Proc.new to lambda as per knife-ec2
Cleaned up load_winrm_deps, added missing option details for secret, and changed secret file from Proc.new to lambda as per knife-ec2

Signed-off-by: Martin Stevens <4d6e09a8c278aa6767afa9ac216b51702c77c38e@budgester.com>

chef/knife-rackspace,decklin/knife-rackspace,chef/knife-rackspace