Shift key when deleting a saved game do not need confirmation, addresses #3018

This was SVN commit r16245.

binaries/data/config/default.cfg

@@ -290,6 +290,7 @@ rotate.ccw = LeftBracket     ; Rotate building placement preview anticlockwise
 [hotkey.session.savedgames]
 delete = Delete               ; Delete the selected saved game asking confirmation
 reallyDelete = "Shift+Delete" ; Delete the selected saved game without confirmation
+noConfirmation = Shift        ; Do not ask confirmation when clicking on the delete button
 
 [hotkey.session.queueunit]   ; > UNIT TRAINING
 1 = "Z"            ; add first unit type to queue

binaries/data/mods/public/gui/manual/intro.txt

@@ -117,3 +117,4 @@ Left Drag: Rotate building using mouse (foundation will be placed on mouse relea
 [font="sans-bold-14"]When loading a saved game
 [font="sans-14"]Delete: delete the selected saved game, asking for confirmation
 Shift+Delete: delete the selected saved game without asking for confirmation
+Shift: do not ask confirmation when clicking on the delete button

binaries/data/mods/public/gui/savedgames/load.xml

@@ -28,7 +28,12 @@
 
 		<object name="deleteGameButton" type="button" size="33%+20 100%-60 66%-15 100%-32" style="StoneButton" hotkey="session.savedgames.delete">
 			<translatableAttribute id="caption">Delete</translatableAttribute>
-			<action on="Press">deleteGame();</action>
+			<action on="Press">
+				if (Engine.HotkeyIsPressed("session.savedgames.noConfirmation"))
+					deleteGameWithoutConfirmation();
+				else
+					deleteGame();
+			</action>
 		</object>
 
 		<object hotkey="session.savedgames.reallyDelete">