removed old boost version made boost required

gcontini

2019-09-01 76635c2bef0bb51394e703bb22cc7286efc6b4c5

 src/library/base/EventRegistry.cpp

@@ -79,7 +79,7 @@
}

void EventRegistry::addError(EVENT_TYPE event) {
   addEvent(event, SVRT_ERROR);
   this->addEvent(event, SVRT_ERROR);
}

void EventRegistry::addEvent(EVENT_TYPE event, SEVERITY severity) {