... That is, present translators with msgids containing only the descriptions
of the file types. No punctuation.
This eliminates the last wxFileDialog, replacing it with FileDialogWrapper.
Ran "autoreconf --force --no-recursive" for Linux build.
Add nyquist-plug-in-installer.ny to Windows build
Add Nyquist Plug-in Installer to mac build
Fix translation strings in plug-in installer