Merge branch 'master' into jgrpp

# Conflicts:
#	src/company_cmd.cpp
#	src/lang/japanese.txt
#	src/network/core/config.h
#	src/network/core/packet.cpp
#	src/network/core/tcp.cpp
#	src/network/network_content.cpp
#	src/network/network_server.cpp
#	src/network/network_udp.cpp
#	src/toolbar_gui.cpp
#	src/vehicle_gui_base.h

src/video/win32_v.cpp

@@ -1319,6 +1319,8 @@ const char *VideoDriver_Win32OpenGL::Start(const StringList &param)
 		_cur_resolution = old_res;
 		return "Can't get pointer to screen buffer";
 	}
+	/* Main loop expects to start with the buffer unmapped. */
+	this->ReleaseVideoPointer();
 
 	MarkWholeScreenDirty();