PNR status and train info

0.12.53- fix PNR status- fix seat availability0.12.51- fix running status- fix arrivals and departures- fix trains between stations0.12.5- show distance and ETA in running status- add option to copy PNR and to share PNR status- UI improvements- bug fixes0.12.1- fix compatibility with Android 1.6- do not show ads if pro version is installed0.12.0- Save train schedule automatically