Switch default model to pc104.

As of xkeyboard-config 1.9, the evdev model is hidden (c887d2876)
The server switched to pc105 with version 1.8 (1df4bd601).

The evdev model resolves to pc104 anyway, so this commit has no real effect
other than to switch from a catch-all rule to explicit.
Use pc104 so this is easy to find for those investigating the code and
wondering why. pc104 is the 'correct' geometry for the us layout, which is
the default after all. Switching to pc105 would show keys missing if no
model is set (e.g. on uk/de layouts) but it would be the wrong layout for
the default.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Daniel Stone <daniel@fooishbar.org>

src/evdev.c

@@ -96,7 +96,7 @@
 
 static const char *evdevDefaults[] = {
     "XkbRules",     "evdev",
-    "XkbModel",     "evdev",
+    "XkbModel",     "pc104", /* the right model for 'us' */
     "XkbLayout",    "us",
     NULL
 };