Merge pull request #4549 from koying/fixamcinitcolor

FIX: [mediacodec] fixup initial output format for software rendering
Merge pull request #4550 from koying/fixstfinbufsize

FIX: [stagefright] adjust input mediabuffer size
Merge pull request #4527 from Jalle19/fix-timeline-navigation

[epg] Fix navigating to the sidebar with cursor keys
Merge pull request #4568 from MartijnKaijser/fix_pydoc2

[pydocs] update xbmc.PlaySFX example after 770091c
Merge pull request #4564 from koying/fixmediakeys

FIX: [keyboard;droid] add mappable media keys for rewind and fastforward
Merge pull request #4547 from jesshaas/curl-socket-error

Add EINTR check to select in CCurlFile::FillBuffer. Fixes bug#15019
Merge pull request #4557 from arnova/nginx_filesize

Nginx filesize was broken for some configs
Merge pull request #4567 from koying/fixamcbuffers

FIX: [mediacodec] make sure the output buffer is released from the SurfaceView queue
Merge pull request #4569 from koying/fixamcreleasebuffer

FIX: [mediacodec] properly release output buffer if AddProcessor is not called
fix album rating wasn't saved in the database
Merge pull request #4518 from astiob/convert_quad

Clean up convert_quad slightly and fix subtitle corruption with new libass
Merge pull request #4158 from stefansaraev/mount

udevprovider fixes
Merge pull request #4546 from t-nelson/curl_no_more_than_two_in_multi

Curl multi-session fixes
Merge pull request #4573 from jmarshallnz/dxva_yuv_range_fix

[dxvahd] attempt to fix colour range
Merge pull request #4574 from FernetMenta/aefixes

ActiveAE: recreate sink buffers if frame size has changed
[lang] update of internal addon language files
[lang] update of core language files
[lang] update of skin.confluence language files
[lang] removed duplicated Vietnamese language
Merge pull request #4578 from davilla/fix-mediacodec

[droid] fixed stutter under MediaCodec. We need to wait a little longer before we think the frame is late