(svn r20093) [1.0] -Backport from trunk:

- Fix: Crash when spectator tried to open a vehicle list without selecting any company [FS#3892] (r20041)
- Fix: Instead of loading the intro game when loading a savegame fails on the dedicated server, generate a new game [FS#3907] (r20039)
- Fix: Tram tracks did not show at level crossing with the new railtypes [FS#3911] (r20036)
- Fix: Under some circumstances you could get into an infinite loop [FS#3909] (r20035)
- Fix: The 64 bits TortoiseSVN was not always properly detected (r20029)

projects/determineversion.vbs

@@ -96,7 +96,7 @@ Function DetermineSVNVersion()
 	Dim sTortoise
 	' First, try with 32-bit architecture
 	sTortoise = ReadRegistryKey("HKLM", "SOFTWARE\TortoiseSVN", "Directory", 32)
-	If sTortoise = "" Then
+	If sTortoise = "" Or IsNull(sTortoise) Then
 		' No 32-bit version of TortoiseSVN installed, try 64-bit version (doesn't hurt on 32-bit machines, it returns nothing or is ignored)
 		sTortoise = ReadRegistryKey("HKLM", "SOFTWARE\TortoiseSVN", "Directory", 64)
 	End If