Fix nodes growing without limit (#33)

With this patch, aura node growth from Nexus bees will be properly
capped at 256 points per aspect, as originally intended, instead of
aspect nodes growing without any limit.

src/main/java/magicbees/main/utils/compat/thaumcraft/NodeHelper.java

@@ -110,7 +110,7 @@ public class NodeHelper {
 							aspectToAdd = getWeightedRandomAspect(world.rand);
 							++rollAttempts;
 						}
-						while (aspectsBase.getAmount(aspectToAdd) < 255 && 20 < rollAttempts);
+						while (aspectsBase.getAmount(aspectToAdd) > 255 && rollAttempts < 20);
 						
 						if (20 <= rollAttempts) {
 							return false;