libbluray: use official download location again, the server seems to work again

Signed-off-by: Stephan Raue <stephan@openelec.tv>
tvheadend: update to tvheadend-3.9.1847

closes #3549
chanage linux command line~
Update apt-get

Line 25 and 26 got the word "local" at the end and start of it.
Merge pull request #3550 from Keuvie/patch-1

Update apt-get
Merge remote-tracking branch 'openelec/master'
some fix