Fix warnings produced with -Weffc++ in fairmq, base/MQ and Tutorial3.

Remaining warnings originate from boost::msm and boost::mpl.
Also, warnings with missing initializer list entries for DeviceOptions are false positives, since those are PODs.

fairmq/nanomsg/FairMQPollerNN.cxx

@@ -17,6 +17,8 @@
 #include "FairMQPollerNN.h"
 
 FairMQPollerNN::FairMQPollerNN(const vector<FairMQSocket*>& inputs)
+    : items()
+    , fNumItems()
 {
     fNumItems = inputs.size();
     items = new nn_pollfd[fNumItems];