Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/os/unix/unix.cpp
	src/widgets/dropdown.cpp

projects/openttd_vs100.vcxproj

@@ -568,6 +568,7 @@
     <ClInclude Include="..\src\road_type.h" />
     <ClInclude Include="..\src\roadstop_base.h" />
     <ClInclude Include="..\src\roadveh.h" />
+    <ClInclude Include="..\src\safeguards.h" />
     <ClInclude Include="..\src\screenshot.h" />
     <ClInclude Include="..\src\sdl.h" />
     <ClInclude Include="..\src\sound\sdl_s.h" />

projects/openttd_vs100.vcxproj.filters

@@ -933,6 +933,9 @@
     <ClInclude Include="..\src\roadveh.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\safeguards.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\src\screenshot.h">
       <Filter>Header Files</Filter>
     </ClInclude>

projects/openttd_vs80.vcproj

@@ -1546,6 +1546,10 @@
 				RelativePath=".\..\src\roadveh.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\safeguards.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\screenshot.h"
 				>

projects/openttd_vs90.vcproj

@@ -1543,6 +1543,10 @@
 				RelativePath=".\..\src\roadveh.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\safeguards.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\screenshot.h"
 				>