Several FairMQ fixes and improvements:

- FairMQ: add possibility to poll on multiple channels.
- FairMQ: include command channel when polling on blocking calls (for unblocking without termination).
- FairMQ: move signal handler inside of FairMQDevice class (call FairMQDevice::CatchSignals() in the main function).
- FairMQ: add 'bool CheckCurrentState(statename)' (instead of 'GetCurrentState() == statename' that cannot be thread safe).
- FairMQDevice: add 'InteractiveStateLoop()' method that can be used to change states from the command line.
- FairMQDevice: add automatic transition to IDLE state if Run() exits without an external event.
- FairMQDevice: implement device reset.
- FairMQDevice: use unordered_map for device channels.
- FairMQChannel: improve address validation for channels.
- FairMQChannel: add ExpectsAnotherPart() method to check if another msg part is expected (old approach still works).
- FairMQ: remove invalid transition from the run files.
- FairMQFileSink: disable ROOT termination signal handler.
- Tutorial3: spawn xterm windows from start scripts without overlapping for better visibility.
- FairMQ Examples: update protobuf test and move its files to a common directory.
- FairMQStateMachine: improve feedback on invalid transitions (more readable).

fairmq/options/FairMQProgOptions.h

@@ -16,6 +16,8 @@
 #ifndef FAIRMQPROGOPTIONS_H
 #define	FAIRMQPROGOPTIONS_H
 
+#include <unordered_map>
+
 #include "FairProgOptions.h"
 
 #include "FairMQChannel.h"
@@ -25,7 +27,7 @@ namespace pt = boost::property_tree;
 class FairMQProgOptions : public FairProgOptions
 {
 protected:
-    typedef std::map< std::string,std::vector<FairMQChannel> > FairMQMap;
+    typedef std::unordered_map< std::string,std::vector<FairMQChannel> > FairMQMap;
 
 public:
     FairMQProgOptions();