Merging Source v1.7.2: scene changes

src/com/shatteredpixel/shatteredpixeldungeon/windows/WndChallenges.java

@@ -0,0 +1,7 @@
+package com.shatteredpixel.shatteredpixeldungeon.windows;
+
+/**
+ * Created by Evan on 18/10/2014.
+ */
+public class WndChallenges {
+}