qt4-client-gen: disconnect all D-Bus signals on invalidation
qt4-client-gen: disconnect all D-Bus signals on invalidation

TelepathyQt/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,TelepathyIM/telepathy-qt,TelepathyIM/telepathy-qt,special/telepathy-qt-upstream,special/telepathy-qt-upstream,TelepathyQt/telepathy-qt,detrout/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,detrout/telepathy-qt,TelepathyIM/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,anantkamath/telepathy-qt,TelepathyIM/telepathy-qt,anantkamath/telepathy-qt,tiagosh/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,anantkamath/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,TelepathyQt/telepathy-qt,special/telepathy-qt-upstream,detrout/telepathy-qt,tiagosh/telepathy-qt,tiagosh/telepathy-qt,tiagosh/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,TelepathyQt/telepathy-qt,TelepathyIM/telepathy-qt