Clean up ui.asm a little:

- "welcome" symbol removed
- refernces to 'welcome' for version checking replaced with references to versionNumber uint
- versionNumber added
- Other stuff.

zsnes/src/gui/guimisc.inc

@@ -81,7 +81,7 @@ MovieRecord:
 .noappend
     mov al,[soundon]
     mov [RecData],al
-    mov eax,[welcome+8]
+    mov eax,[versionNumber]
     mov [RecData+1],eax
     mov byte[RecData+2],1
     mov eax,[timer2upd]