* lang/qt/src/job.cpp, lang/qt/src/job.h (Job::startNow): New method.
* lang/qt/src/job_p.h (JobPrivate::start): New pure virtual method.
* lang/qt/src/qgpgmechangeexpiryjob.cpp
(QGpgMEChangeExpiryJobPrivate::start): New.
* lang/qt/src/qgpgmeencryptjob.cpp (QGpgMEEncryptJobPrivate::start):
New.
* lang/qt/src/qgpgmeimportjob.cpp (QGpgMEImportJobPrivate::start): New.
* lang/qt/src/qgpgmelistallkeysjob.cpp
(QGpgMEListAllKeysJobPrivate::start): New.
* lang/qt/src/qgpgmesignencryptjob.cpp
(QGpgMESignEncryptJobPrivate::start): New.
* lang/qt/src/threadedjobmixin.h (Thread::hasFunction): New method.
(ThreadedJobMixin::run, ThreadedJobMixin::setWorkerFunction): New
methods.