fixed deleted database even if --delete_db_on_start is set

src/CoreNode.cpp

@@ -42,7 +42,6 @@ int main(int argc, char** argv)
 
 	ros::init(argc, argv, "rtabmap");
 
-	bool deleteDbOnStart = false;
 	nodelet::V_string nargv;
 	for(int i=1;i<argc;++i)
 	{

src/CoreWrapper.cpp

@@ -282,7 +282,7 @@ void CoreWrapper::onInit()
 	//parse input arguments
 	std::vector<std::string> argList = getMyArgv();
 	char * argv[argList.size()];
-	bool deleteDbOnStart;
+	bool deleteDbOnStart = false;
 	for(unsigned int i=0; i<argList.size(); ++i)
 	{
 		argv[i] = &argList[i].at(0);