/configuration uses PUT

fixes #2377

Author: Vladimir Kotal

apiary.apib

@@ -24,7 +24,7 @@ Besides `/suggester` and `/search` endpoints, everything is accessible from `loc
         </java>
         ```
 
-### sets configuration from XML representation [POST]
+### sets configuration from XML representation [PUT]
 
 + Request (application/xml)
   + Body
@@ -383,4 +383,4 @@ Repository type is separated from the repository path with a colon.
             /foo    bar
             /foo/foo    bar bar
 
-+ Response 204
++ Response 204