FMSLogo Code

Fix bug #471; the uninstaller now removes the preferences that are stored in the registry.

Disable the screensaver component when running as a standard user, since attempting to install it will always fail. I could have removed it completely, but I want it to appear to make it discoverable by people who might otherwise not know that it exists.

Add the UserInfo plugin as a "reserve file" in the NSIS installer for faster installation startup (this eliminates the "unpacking data - xx%" dialog box as it no longer needs to decompress everthing to use the plugin in onInit). In addition to a more responsive UI, this also fixes a localization problem, as the text in that dialog box was not localized according to the selected language.

Refactor the installation script so that all language strings are in the same place and use the LangString command. This makes the code easier to read and easier to localize.

Update the Features and Sources sections based on recent changes:
* FMSLogo doesn't support non-true color displays
* fmslogo.exe and screensaver are both built with mingw-w64 and wxWidgets

Remove the directive to exclude the "CVS" directories when packing the Logolib and Examples directories into the installer. This is a vestige from when FMSLogo's revision control was CVS. Now that it uses Subversion, this is no longer needed.

Update the installer to use the NSIS "Modern UI 2". Among other things, this has a richer UI, a configurable start menu shortcut dialog, and better support for a multi-language installer.

This also implements feature request #37, which is an explicit "done" page in the installation wizard.

Remove a cmd script that used to generate the version.h file. This is now done by the Makefile (for portability to GNU/Linux), so keeping this cmd script around is confusing.

Remove *.c from the source files which "tags" depends on. The Windows version of gmake has trouble with this because there are no .c files and it wants to make a literal '*.c'. And since there no *.c files (anymore) there's no reason for "tags" to depend on .c files.

Note that FMSLogo is entirely built using free (or zero-cost) tools,
now that the Borland OWL version has been removed from the tree.