Save and load the veget set filename.

--HG--
branch : gsoc2014-dfighter

code/studio/src/plugins/tile_editor/tilebank_loader.cpp

@@ -125,6 +125,8 @@ public:
 		loadTilesDisplacement( set, static_cast< TileTypeNode* >( node->child( 3 ) ) );
 
 		node->setOriented( set->getOriented() );
+
+		node->setVegetSet( set->getTileVegetableDescFileName().c_str() );
 	}
 
 	void loadTileSets( TileModel *model )

code/studio/src/plugins/tile_editor/tilebank_saver.cpp

@@ -189,6 +189,8 @@ public:
 			setupDisplacementTiles( set, n );
 
 			set->setOriented( n->isOriented() );
+
+			set->setTileVegetableDescFileName( n->vegetSet().toUtf8().constData() );
 		}
 
 		// Add tilesets to lands