4.1.2
Update CHANGES and bump version
修正翻译（用词一致）
add xchacha20-ietf-poly1305
修复ConfigForm不安全代码。链接分隔符支持空格。
Fix port range check and move Sip003Plugin.
New traffic icon style (#703)
Socket.Close calls Socket.Dispose internally
补上Statistics界面的图标
Replace circular buffer with the blockcopy variant
Fix fail to register hotkeys after wake up (#1954)
Refine LogViewerConfig. Don't store window size in main settings file
Upgrade to .NET Framework 4.6.2
Add comments in app.config
Fix compatibility issue on vista and win7.
Update nuget packages
Refine HotkeyReg logic
update icon