Merge #8392: Fix several node initialization issues

9d4eb9a Do diskspace check before import thread is started (Pieter Wuille)
aa59f2e Add extra message to avoid a long 'Loading banlist' (Pieter Wuille)
0fd2a33 Use a signal to continue init after genesis activation (Pieter Wuille)

src/net.cpp

@@ -2050,6 +2050,8 @@ void StartNode(boost::thread_group& threadGroup, CScheduler& scheduler)
         DumpBanlist();
     }
 
+    uiInterface.InitMessage(_("Starting network threads..."));
+
     fAddressesInitialized = true;
 
     if (semOutbound == NULL) {