Merge #11831: Always return true if AppInitMain got to the end

07c4838 Always return true if AppInitMain got to the end (Matt Corallo)

Pull request description:

  This should fix a rare zapwallettxes failure on travis, but also
  avoids having init operations (re-adding wallet transactions to
  mempool) running after RPC is free'd.

  I believe this was the failure at https://travis-ci.org/bitcoin/bitcoin/jobs/311747844 (from #11605).

Tree-SHA512: f0fea8c1b9265e2eeda57043d541380a3e58e4d9388fa24628a52fd56324257fcd7df0ca02e8f77f66fadd68d951893bab0f610ed9fd0a89b2ccd6bad1efa351

Author: laanwj

src/init.cpp

@@ -1726,5 +1726,5 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     StartWallets(scheduler);
 #endif
 
-    return !fRequestShutdown;
+    return true;
 }