Feature - #283 verbosity of annotations

- the configuration variable annotation.details now controls the
  verbosity of the output of annotations.

src/Config.cpp

@@ -144,6 +144,7 @@ void Config::createDefaultRC (const std::string& rc, const std::string& data)
            << "# Miscellaneous\n"
            << "confirmation=yes                       # Confirmation on delete, big changes\n"
            << "echo.command=yes                       # Details on command just run\n"
+           << "annotation.details=2                   # Level of verbosity for annotations in reports\n"
            << "next=2                                 # How many tasks per project in next report\n"
            << "bulk=2                                 # > 2 tasks considered 'a lot', for confirmation\n"
            << "nag=You have higher priority tasks.    # Nag message to keep you honest\n"