Unindex, create and drop are managed by catalog

As it is the string, make it of fixed string

As get and put actions are deterministic there is no need to loop
over various schemas when checking data. If there is an error it is
returned directly.

* allDocs now behave like others action mode and return the result
of the match
* It allows greater customization of the output data

* use get Input Schema of JSON form
* get schema url uses absolute url.