add 4K resolution info for skinners
[atv2/ios] fix failed build after e831da6192a25e219754cbdb0672842fc262262e
fix pydoc generation for d6f37b2c9f4c844fa3a78bbd147a7dc622135d26
cosmetics
Merge pull request #3122 from ronie/4K-lovers

add 4K resolution info for skinners
Merge pull request #3174 from amet/smc

[atv2/ios] fix failed build after e831da6192a25e219754cbdb0672842fc262262e
[win32] update and clean exclude.txt used in BuildSetup
[win32] remove buildskins.bat since it's not used
[win32] remove language install checkbox and just install all languages