[win32] Network::GetHostName: convert result to UTF-8
[win32] WinSystemWin32 use widestring functions instead of ANSI
Prevent unnecessary colorspace conversions
[settings] implement OnSettingsUnloaded, fixes various advancedsettings leaking from profile to profile (e.g. mysql database config)
Add handling of cue tags without quotes
Merge pull request #4254 from jmarshallnz/onsettingsunloaded

Implements OnSettingsUnloaded
Merge pull request #4192 from Shine-/dxvarenderer

Prevent unnecessary colorspace conversions (regression in #4163)
Merge pull request #4057 from Karlson2k/win32_fix_nonutf8

[win32] fix ANSI used as UTF-8
Merge pull request #4259 from phate89/master

Allow xbmc to handle cue tags without quotes
[settings] reshuffle, group and add conditions for enabled/visible status for better usability of settings screens
[language] fix wrong and misleading labels
[settings] cleanup video decoding settings (hw-accel + frame-multi-threaded) by moving them to their own settings category
[subtitles] change settings logic for subtitle storage location (make it a spinner)
[settings] enable teletext scaling only if teletext is enabled
[settings] pvrpowermanagement settings/timers to be dependent on powermanagement being enabled
[subtitles] drop 'prefer external' option, always preferring