Changes between 2.2.6 and 2.2.7:
--------------------------------

Decoders:
* Fix flac heap write overflow on format change
* Fix crash in libavcodec module (heap write out-of band) (CVE-2017-10699)
* Fix infinite loop in sami subtitle
* Fix AAC 7.1 channels detection

Demuxers:
* Fix potential crash in ASX parser
* Fix AVI read/write overflow

Mac OS X:
* Fix compatibility with macOS High Sierra
* Fix regression in ASS subtitle decoding
* Fix crash during automatic update. Some users might need to manually
update to the newest version.

Video Output:
* Fix Direct3D9 output with odd offsets

Misc:
* Fix crash in MTP
* Support libupnp 1.8

Translations updates