Added support for `--portable-mode` and `--server-datafolder` for the CLI, ServerUtil, and Agent.
Fixed a few places where file reads were not cached properly.
Moved some responsibilities of UpdaterManager into DataFolderManager.
This now supports storing `machineid.txt` and `installation.txt` inside the path pointed to by `--server-datafolder` or alternatively with `--portable-mode`.
It is possible that some fringe backwards compatibility is lost with this update.
Fixed an issue with AutoUpdater crashing on check/download.
This fixes#5902
Avoids setting deprecated `Thread.CurrentCulture` and `Thread.CurrentUICulture`, using `CultureInfo.CurrentCulture` instead.
Fixed a few legacy places where incorrect string compares were used.
Cleaned up some loading of embedded resourse to rely on type instead of assembly name.
Implemented installed executable name instead of using Windows executable names.