Merge branch 'master' into jgrpp

# Conflicts:
#	src/lang/afrikaans.txt
#	src/lang/basque.txt
#	src/lang/belarusian.txt
#	src/lang/brazilian_portuguese.txt
#	src/lang/bulgarian.txt
#	src/lang/catalan.txt
#	src/lang/croatian.txt
#	src/lang/czech.txt
#	src/lang/danish.txt
#	src/lang/dutch.txt
#	src/lang/english.txt
#	src/lang/english_AU.txt
#	src/lang/english_US.txt
#	src/lang/estonian.txt
#	src/lang/finnish.txt
#	src/lang/french.txt
#	src/lang/gaelic.txt
#	src/lang/galician.txt
#	src/lang/german.txt
#	src/lang/greek.txt
#	src/lang/hebrew.txt
#	src/lang/hungarian.txt
#	src/lang/icelandic.txt
#	src/lang/indonesian.txt
#	src/lang/irish.txt
#	src/lang/italian.txt
#	src/lang/japanese.txt
#	src/lang/korean.txt
#	src/lang/latin.txt
#	src/lang/latvian.txt
#	src/lang/lithuanian.txt
#	src/lang/luxembourgish.txt
#	src/lang/norwegian_bokmal.txt
#	src/lang/norwegian_nynorsk.txt
#	src/lang/polish.txt
#	src/lang/portuguese.txt
#	src/lang/romanian.txt
#	src/lang/russian.txt
#	src/lang/serbian.txt
#	src/lang/simplified_chinese.txt
#	src/lang/slovak.txt
#	src/lang/slovenian.txt
#	src/lang/spanish.txt
#	src/lang/spanish_MX.txt
#	src/lang/swedish.txt
#	src/lang/tamil.txt
#	src/lang/thai.txt
#	src/lang/traditional_chinese.txt
#	src/lang/turkish.txt
#	src/lang/ukrainian.txt
#	src/lang/unfinished/persian.txt
#	src/lang/vietnamese.txt
#	src/lang/welsh.txt
#	src/rail_cmd.cpp
#	src/station_cmd.cpp

src/script/api/script_group.cpp

@@ -29,7 +29,7 @@
 
 /* static */ ScriptGroup::GroupID ScriptGroup::CreateGroup(ScriptVehicle::VehicleType vehicle_type)
 {
-	if (!ScriptObject::DoCommand(0, (::VehicleType)vehicle_type, 0, CMD_CREATE_GROUP, NULL, &ScriptInstance::DoCommandReturnGroupID)) return GROUP_INVALID;
+	if (!ScriptObject::DoCommand(0, (::VehicleType)vehicle_type, INVALID_GROUP, CMD_CREATE_GROUP, NULL, &ScriptInstance::DoCommandReturnGroupID)) return GROUP_INVALID;
 
 	/* In case of test-mode, we return GroupID 0 */
 	return (ScriptGroup::GroupID)0;

src/script/api/script_order.hpp

@@ -578,6 +578,7 @@ public:
 
 	/**
 	 * Removes the given vehicle from a shared orders list.
+	 * After unsharing orders, the orders list of the vehicle is empty.
 	 * @param vehicle_id The vehicle to remove from the shared order list.
 	 * @pre ScriptVehicle::IsValidVehicle(vehicle_id).
 	 * @return True if and only if the unsharing succeeded.