Merge branch 'tracerestrict-sx' into jgrpp

# Conflicts:
#	src/lang/english.txt
#	src/settings_gui.cpp
#	src/settings_type.h
#	src/table/settings.ini
#	src/vehicle_gui.cpp

src/string_func.h

@@ -46,6 +46,7 @@ void ValidateString(const char *str);
 
 void str_fix_scc_encoded(char *str, const char *last);
 void str_strip_colours(char *str);
+char *str_replace_wchar(char *str, const char *last, WChar find, WChar replace);
 bool strtolower(char *str);
 
 bool StrValid(const char *str, const char *last);