metaObject: findMethod: only accept name (before it accepted complete sig too)
metaObject: findMethod: only accept name (before it accepted complete sig too)

Change-Id: I1ab6a3a11f46fa08c6bd5b542265da9af5ce41f7

vbarbaresi/libqi,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi,bsautron/libqi