#2 Expose 'Content-Type' header too.
Shiro: scan for annotations and emit appropriate security checks in the handler.
Shiro: generate appropriate HTTP responses based on security context.
Merge branch 'shiro' of github.com:kalixia/Grapi into shiro

* 'shiro' of github.com:kalixia/Grapi:
  Shiro: generate appropriate HTTP responses based on security context.
  Shiro: scan for annotations and emit appropriate security checks in the handler.