core: Add 'wait' parameter to vm.run_service function
Sometimes it makes sense to "fire and forget" a service. For example "qubes.InstallUpdatesGUI". QubesOS/qubes-issues#1249
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				@ -1616,20 +1616,21 @@ class QubesVm(object):
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        return retcode
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    def run_service(self, service, source="dom0", user=None,
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                    passio_popen=False, input=None, localcmd=None, gui=False):
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                    passio_popen=False, input=None, localcmd=None, gui=False,
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                    wait=True):
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        if bool(input) + bool(passio_popen) + bool(localcmd) > 1:
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            raise ValueError("'input', 'passio_popen', 'localcmd' cannot be "
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                             "used together")
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        if localcmd:
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            return self.run("QUBESRPC %s %s" % (service, source),
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                            localcmd=localcmd, user=user, wait=True, gui=gui)
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                            localcmd=localcmd, user=user, wait=wait, gui=gui)
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        elif input:
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            return self.run("QUBESRPC %s %s" % (service, source),
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                            localcmd="echo %s" % input, user=user, wait=True,
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                            localcmd="echo %s" % input, user=user, wait=wait,
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                            gui=gui)
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        else:
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            return self.run("QUBESRPC %s %s" % (service, source),
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                            passio_popen=passio_popen, user=user, wait=True,
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                            passio_popen=passio_popen, user=user, wait=wait,
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                            gui=gui)
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    def attach_network(self, verbose = False, wait = True, netvm = None):
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