replace fiber with http.ServeMux

anydb.pod

@@ -569,7 +569,7 @@ Some curl example calls to the API:
 Post a new key:
     curl -X PUT localhost:8787/anydb/v1/ \
       -H 'Content-Type: application/json' \
-      -d '{"key":"foo","val":"bar"}'
+      -d '{"key":"foo","data":"bar"}'
 
 Retrieve the value:
 
@@ -579,6 +579,11 @@ List all keys:
 
     curl localhost:8787/anydb/v1/
 
+Delete an entry:
+
+    curl -s -X DELETE http://localhost:8787/anydb/v1/foo
+
+
 =head1 BUGS
 
 In order to report a bug, unexpected behavior, feature requests