Losslessly compress res/web/img.
Whitespace cosmetics.

Remove unneeded spaces and reindent comments in some cases to improve readability.
Update Changelog.txt.
pre-commit.sh: use 2 spaces for indentation.
PlayerSeekbar: thumb paint optimization

Painted thumb is now cached
PlayerSeekbar: code refactoring
PlayerSeekbar: allow frame numbers in the tooltip

For media that uses frame numbers for seeking, for example .swf
IMediaSeeking::GetTimeFormat refactoring
Options Dialog: properly gray-out inactive items

Refs #2449
MainFrm: don't hide window when changing tray icon

Fixes #3391
Updated Traditional Chinese and Japanese translations.

Ticket #1647 and ticket #1644.
player.html: remove width completely.

It's handled in JS.
Initialize variables in the constructor.
Enable per-monitor DPI-aware on Windows 8.1.

Fixes #3356.
Add a Doxyfile to generate source doc.

WIP
Use DEBUG_NEW instead of new.
temp