Enhancements - version command

- Implemented version command.
- Corrected config handling in version command.

src/task.cpp

@@ -462,7 +462,6 @@ std::string runTaskCommand (
   else if (command == "calendar")           { out = handleReportCalendar  (tdb, task); }
   else if (command == "summary")            { out = handleReportSummary   (tdb, task); }
   else if (command == "timesheet")          { out = handleReportTimesheet (tdb, task); }
-  else if (command == "version")            { out = handleVersion         (         ); }
   else if (command == "help")               { out = longUsage             (         ); }
 
   // Commands that cause updates.