2021-04-03: Scrollbar-related window resizing bug fix

Just a small fix for an issue related to when the underlying console disables its own scrollbar. This caused the scrollbar to get hidden, which sometimes caused weird inconsistencies with resizing the window. This is particularly noticeable with some programs running under WSL. While this is technically a workaround to avoid an issue with the existing window sizing code, the underlying console doesn't hide its scrollbar when temporarily disabled by the running program and only prevents scrolling, so this seems like the right way to do it.

2020-01-12: Underline and reverse video support

This release adds support for the underline and reverse video flags for any console programs that use them.