0.16.3

• Allow recursive search and globbing in searchvar and inventory commands (#97)
• terraform in CI image (#98)
• Updated kube.libjsonnet and fixed secrets example (#101)
• Added secrets info in docs
• Updates to GPG backend functions (#103):
  • RSA private keys ?{gpg:common/rsa.key|rsa}
  • Support for pipes ?{gpg:mysql/root/password|randomstr|base64}
  • SHA256 function ?{gpg:mysql/root/password|randomstr|sha256}
  • Deprecated |randomstrb64 in favor of |randomstr|base64