Bug#606180: assistant-qt4: prints warning to console at startup

[Jonathan Nieder <jrnieder@gmail.com>]

Package: qt4-dev-tools
Version: 4:4.7.1-1
Severity: minor
Justification: cosmetic/warning

 $ assistant
 Object::connect: No such signal HelpViewer::printRequested()

The assistant itself works fine (aside from bug#606073).  Still,
thought you might like to know.