DVBSub: Improve error checking during parsing.
Updated LAV Filters to 0.61-5-5055ce7 (custom build based on stable version 0.61.0)

Important changes:
 - LAV Splitter: Support ShoutCast metadata.
 - LAV Video: Fix artifacts on some H264 streams with both software and DXVA decoding (reported upstream as https://trac.ffmpeg.org/ticket/3386).
 - LAV Video: Various improvements for DXVA support (native and copy-back).
Ensure tooltips with an ampersand (&) are correctly displayed in the options pages and information/statistics bars.
Automatically refresh the information bar and title bar.

Ensure the correct information are shown for streaming (e.g. ShoutCast radios).

This commit fixes #2348 and #3583.
Update translations from Transifex:

 - Galician
 - Greek
 - Hungarian
 - Japanese
 - Vietnamese
Fix opening of the Options dialog for the Bengali translation.
Fix repainting of toolbar separators after non-client area has been painted.
Fixes #2994
Merge pull request #131 from ioannis-e/fix#4114

Fix repainting of toolbar separators
ISR: Crop PGS and DVB subtitles if they don't fit.

- Preserve aspect ratio of subtitle frame
- Crop subtitle frame if it's bigger than video frame in order to correctly display subtitles when video frame was cropped.
BVF: Pass through colorimetry information

This enables the usage of colorimetry information passed down the
filter chain from the decoder.

Currently limited to a white list of filters:
 - VMR7,9
 - EVR
 - madVR
ISR/VSFilter: Use correct colorimetry information for PGS and DVB subtitles.

- Fix YCbCr to RGB conversion methods. Target range divided by single
  chroma channel is not equal 2! (even if we don't correct range...)
  Additionally add support for 4:4:4 and 4:2:2 sources.
- Use correct values for BT.709 conversion.
Fixes CID #1192560 #1192561 #1192562
MainFrame: fix snapping to desktop edges

Refs #4116
Treat tooltips as part of parent root window

Fixes #4128
Update translations from Transifex:

 - Chinese (traditional)
 - Japanese
 - Romanian
 - Ukrainian
Updated LAV Filters to 0.61.1-5-2fcf5d4 (custom build based on stable version 0.61.1)

Important change:
 - LAV Splitter: Fix the opening of some Blu-ray discs which would take several minutes and could hang the player.
Support for opening "icyx://" stream URLs.

LAV Splitter can handle them now.