smo::Mind instance now global; track & manage JOLT state in Mind

We moved the instance of smo::Mind to global scope. I suppose we'll
only support one instance of Mind per SMO process at least for now.

We now track the state of Mind threads' JOLT-waiting. This allows us
to centralize the Mind thread shutdown logic. Mind::finalizeReq()
now takes care of all Mind thread shutdown state logic by tracking
whether Mind threads need to be JOLTed first before being told to
exit.

smocore/componentThread.cpp

@@ -1,9 +1,10 @@
+#include <unistd.h>
 #include <iostream>
-#include <componentThread.h>
-#include <boost/asio.hpp>
 #include <pthread.h>
 #include <sched.h>
-#include <unistd.h>
+#include <boost/asio.hpp>
+#include <mind.h>
+#include <componentThread.h>
 
 namespace smo {
 
@@ -377,7 +378,7 @@ void ComponentThread::exceptionInd(ComponentThread& thread)
 		std::cerr << "Mrntt: Exception occurred: in thread "
 			<< thread.name << ". Killing Salmanoff." << "\n";
 
-		ComponentThread::exitAllMindThreadsReq(
+		smo::mind.finalizeReq(
 		[]()
 		{
 			mrntt::mrntt->keepLooping = false;