Better description in property actions.

Author: bladecoder

blade-engine/src/com/bladecoder/engine/actions/IfPropertyAction.java

@@ -19,7 +19,7 @@
 import com.bladecoder.engine.model.World;
 import com.bladecoder.engine.util.ActionUtils;
 
-@ActionDescription("Execute the actions inside the If/EndIf if the game propert has the specified value.")
+@ActionDescription("Execute the actions inside the If/EndIf if the game property has the specified value. Properties are created by the user but the next always exists: SAVED_GAME_VERSION, PREVIOUS_SCENE, CURRENT_CHAPTER")
 public class IfPropertyAction extends AbstractIfAction {
 	@ActionProperty(required = true)
 	@ActionPropertyDescription("The property name")

blade-engine/src/com/bladecoder/engine/actions/PropertyAction.java

@@ -18,7 +18,7 @@
 import com.bladecoder.engine.model.VerbRunner;
 import com.bladecoder.engine.model.World;
 
-@ActionDescription("Sets a global game property")
+@ActionDescription("Sets a global game property. Properties are created by the user but the next ones always exists: SAVED_GAME_VERSION, PREVIOUS_SCENE, CURRENT_CHAPTER")
 public class PropertyAction implements Action {
 	@ActionProperty(required = true)
 	@ActionPropertyDescription("Property name")