More Repair optimizations.

src/main/java/com/gmail/nossr50/skills/Repair.java

@@ -339,10 +339,7 @@ public class Repair {
 	}
 	
 	public static boolean isArmor(ItemStack is){
-		return is.getTypeId() == 306 || is.getTypeId() == 307 ||is.getTypeId() == 308 ||is.getTypeId() == 309 || //IRON
-				is.getTypeId() == 310 ||is.getTypeId() == 311 ||is.getTypeId() == 312 ||is.getTypeId() == 313 || //DIAMOND
-				is.getTypeId() == 314 || is.getTypeId() == 315 || is.getTypeId() == 316 || is.getTypeId() == 317 || //GOLD
-				is.getTypeId() == 298 || is.getTypeId() == 299 || is.getTypeId() == 300 || is.getTypeId() == 301; //LEATHER
+		return isLeatherArmor(is) || isGoldArmor(is) || isIronArmor(is) || isDiamondArmor(is);
 	}
 	public static boolean isLeatherArmor(ItemStack is){
 		return is.getTypeId() == 298 || is.getTypeId() == 299 || is.getTypeId() == 300 || is.getTypeId() == 301;
@@ -358,12 +355,7 @@ public class Repair {
 	}
 	public static boolean isTools(ItemStack is)
 	{
-		return is.getTypeId() == 359 || is.getTypeId() == 256 || is.getTypeId() == 257 || is.getTypeId() == 258 || is.getTypeId() == 267 || is.getTypeId() == 292 || //IRON
-				is.getTypeId() == 276 || is.getTypeId() == 277 || is.getTypeId() == 278 || is.getTypeId() == 279 || is.getTypeId() == 293 || //DIAMOND
-				is.getTypeId() == 283 || is.getTypeId() == 285 || is.getTypeId() == 286 || is.getTypeId() == 284 || is.getTypeId() == 294 || //GOLD
-				is.getTypeId() == 268 || is.getTypeId() == 269 || is.getTypeId() == 270 || is.getTypeId() == 271 || is.getTypeId() == 290 ||//WOOD
-				is.getTypeId() == 272 || is.getTypeId() == 273 || is.getTypeId() == 274 || is.getTypeId() == 275|| is.getTypeId() == 291 ||  //STONE
-				is.getTypeId() == 261; //BOW
+		return isStoneTools(is) || isWoodTools(is) || isGoldTools(is) || isIronTools(is) || isDiamondTools(is) || isBow(is);
 	}
 	public static boolean isStoneTools(ItemStack is){
 		return is.getTypeId() == 272 || is.getTypeId() == 273 || is.getTypeId() == 274 || is.getTypeId() == 275 || is.getTypeId() == 291;