Bugfix: Flow Deletion did not remove uploaded bulk files. (#2589) (#2590)

Also

* User GUI missing scrollbar for many users.
* Added the ability to filter hunts by username.

Author: scudette

api/proto/hunts.pb.go

@@ -159,6 +159,8 @@ message ListHuntsRequest {
     // If specified we return a partial structure.
     bool summary = 4;
     bool include_archived = 3;
+
+    string user_filter = 5;
 }
 
 message ListHuntsResponse {

api/proto/hunts.proto

@@ -25,5 +25,5 @@ parameters:
 
 sources:
   - query: |
-       SELECT Type, VFSPath
+       SELECT Type, Data.VFSPath AS VFSPath, Error
        FROM delete_flow(flow_id=FlowId, client_id=ClientId, really_do_it=ReallyDoIt)