V0.6.51

update libtvcore to 651

V0.6.29

Use ExoPlayer
Update libtvcore
Other minor fixes

V0.6.12

bump lib version to 612
improve p2p engine performance significantly
fix other minor bugs

V0.6.5

bump lib version to 565
improve p2p performance
fix other minor bugs

V0.5.8

bump lib version to 558
improved p2p performance
fixed other minor bugs