Moved the *_CSS_* class in their own (draft) library, since they are not CMS specific.
Fixed self documentation when querying documentation related to a specific resource (uri, uri-template, ..)
Before it was showing only the first found
so if we had
  "/foo" GET -> FOO_GET_HANDLER
  "/foo" POST -> FOO_POST_HANDLER
It was showing only the first, now this is working as expected.
update CMS code due to CMS_CSS_* renaming
Include cms and css into the all-safe.ecf
Display only suggestion for request's method