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/FairMQParser.h

@@ -12,6 +12,7 @@
 #include <string>
 #include <vector>
 #include <map>
+#include <unordered_map>
 
 // Boost
 #include <boost/property_tree/ptree.hpp>
@@ -22,7 +23,7 @@
 namespace FairMQParser
 {
 
-typedef std::map< std::string,std::vector<FairMQChannel> > FairMQMap;
+typedef std::unordered_map< std::string,std::vector<FairMQChannel> > FairMQMap;
 
 FairMQMap ptreeToMQMap(const boost::property_tree::ptree& pt, const std::string& deviceId, const std::string& rootNode, const std::string& formatFlag = "json");