NWN auto-updater 0.99.4

NWN auto-updater is designed to enable owners of Macintosh Neverwinter Nights to automatically update their software to the latest available version, directly from the BioWare FTP site. Clicking the update button will go and check to see if any newer versions of the software are available, and will download and install them for you.
This application also includes support for the Shadows of Undrentide and Hordes of the Underdark expansion packs - it will install the expansion packs from the data contained on the Windows CDs, and it will also update them from the BioWare FTP servers.
Enhancements:
- V.99 RC4 is a fix for an install issue that was introduced into v.99.3 This should fix the issues with the install problems and HotU.
- This release (0.99 RC4) is a minor compatibility update. It includes the fixes from v.99.3 along with a fixed handling of installing HotU seperate from SoU (should one not have SoU for some reason.) And a revised install process that handles the directory change on the BioWare servers as implemented in 1.62.
- Of note is that v.1.62 of NWN for HotU does not include the NeverWinter module updates, so the installer now installs the nwclienthotu.tar.gz linux update on install to get a functioning HotU install on the Mac. This file is only installed durring the initial install as it is needed for compatibility and to get a base running version of HotU from the CD. (the HotU CD is 1.59 and does not have the updated module files for Linux on it).