removed unneccessary includes (https://github.com/lene/HyperspaceExplorer/issues/36)
removed unneccessary includes and obsolete reference to std::tr1 (is now std) (https://github.com/lene/HyperspaceExplorer/issues/36)
removed unneccessary includes and obsolete reference to std::tr1 (is now std) (https://github.com/lene/HyperspaceExplorer/issues/36)
removed unneccessary includes and renamed outdated include files to current standards (https://github.com/lene/HyperspaceExplorer/issues/36)