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/examples/req-rep/FairMQExampleClient.cxx

@@ -19,6 +19,7 @@
 #include "FairMQLogger.h"
 
 FairMQExampleClient::FairMQExampleClient()
+    : fText()
 {
 }
 

fairmq/examples/req-rep/runExampleClient.cxx

@@ -59,7 +59,7 @@ typedef struct DeviceOptions
 inline bool parse_cmd_line(int _argc, char* _argv[], DeviceOptions* _options)
 {
     if (_options == NULL)
-        throw std::runtime_error("Internal error: options' container is empty.");
+        throw runtime_error("Internal error: options' container is empty.");
 
     namespace bpo = boost::program_options;
     bpo::options_description desc("Options");