Name lookup can take too long with a bad server

Issue generated from Tuleap's migration script. Originally submitted by: Stepan Salenikovich (ssalenik)

If a bad server is specified, the name lookup takes too long / never ends.

eg: I made a lookup with a non existing server:

[1478803235.690|25072|namedirectory.cpp:181   ] Name lookup for ssalenikovich1: http://bleepbloop/name/ssalenikovich1

And never seemed to get a response from the daemon after several minutes of waiting.

The problem is twofold:

1. the daemon should timeout (sooner)

2. the UI should probably have a way of cancelling the lookup if it is taking too long.