Update CraftBukkit to Minecraft 1.7.5

src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java

@@ -226,5 +226,5 @@ public class CustomChunkGenerator extends InternalChunkGenerator {
         return "CustomChunkGenerator";
     }
 
-    public void b() {}
+    public void c() {}
 }

src/main/java/org/bukkit/craftbukkit/generator/NormalChunkGenerator.java

@@ -82,5 +82,5 @@ public class NormalChunkGenerator extends InternalChunkGenerator {
         return "NormalWorldGenerator";
     }
 
-    public void b() {}
+    public void c() {}
 }