Shapeshift keyword -> Changeling keyword.

Added a mask to magic-new pt box to correct a problem with them not behaving properly if image is extended into textbox.

data/magic-new.mse-style/style

@@ -214,7 +214,7 @@ card style:
 		left:	31
 		top:	62
 		width:	312
-		height:	{ if styling.image_size == "extended" then 407 else 228 }
+		height:	{ if styling.image_size == "extended" then 408 else 228 }
 		z index: 1
 		mask:
 			script: if styling.image_size == "extended" then "imagemask_extended.png" else "imagemask_standard.png"
@@ -363,6 +363,7 @@ extra card style:
 		width:	81
 		height:	42
 		z index: 1
+		mask: ptmask.png
 		visible: { card.pt != "" }
 		render style: image
 		image: { card_ptbox() }

data/magic.mse-game/game

@@ -2018,7 +2018,7 @@ keyword:
 	mode: action
 	reminder: Each clashing player reveals the top card of his or her library then puts that card on the top or bottom. A player wins if his or her card had a higher converted mana cost.
 keyword:
-	keyword: Shapeshift
-	match: Shapeshift
+	keyword: Changeling
+	match: Changeling
 	mode: expert
 	reminder: This creature is every creature type even if this card isn't in play.

data/vanguard.mse-game/game

@@ -929,7 +929,7 @@ keyword:
 	mode: expert
 	reminder: Each clashing player reveals the top card of his or her library then puts that card on the top or bottom. A player wins if his or her card had a higher converted mana cost.
 keyword:
-	keyword: Shapeshift
-	match: shapeshift
+	keyword: Changeling
+	match: changeling
 	mode: expert
 	reminder: It is every creature type even if it isn't in play.