Add witty/stupid comments to a few classes

src/main/java/electroblob/wizardry/util/MagicDamage.java

@@ -45,6 +45,8 @@ import net.minecraft.util.EntityDamageSource;
 // type 'attributes'. This is my attempt to collect all of these into a reasonably coherent system.
 
 /**
+ * <i>"Ouch, that hurt!"</i>
+ * <p>
  * As of wizardry 1.1, this class has replaced the damagesource-related methods in WizardryUtilities, allowing a
  * {@link DamageType} to be specified with the damage. The main reason for this is so that damage sources can fit with
  * the vanilla behaviour on armour enchantments and such like whilst still being classified as wizardry damage for the

src/main/java/electroblob/wizardry/util/SpellModifiers.java

@@ -12,6 +12,8 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraftforge.fml.common.network.ByteBufUtils;
 
 /**
+ * <i>"{@code SpellModifiers} - modify all the things!"</i>
+ * <p>
  * Object that wraps any number of spell modifiers into one, allowing for expandability within the Spell#cast methods.
  * This class is essentially a glorified {@link Map} which can be written to and read from a {@link ByteBuf}. It is
  * possible to calculate spell modifiers from wand NBT within the cast methods, but this is cumbersome and does not

src/main/java/electroblob/wizardry/util/WandHelper.java

@@ -12,6 +12,8 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 
 /**
+ * <i>"Never fear, {@code WandHelper} is here!"</i>
+ * <p>
  * Much like {@link net.minecraft.enchantment.EnchantmentHelper EnchantmentHelper}, this class has some static methods
  * which allow cleaner and more concise interaction with the wand NBT data, which is quite a complex structure. Such
  * interaction previously resulted in rather verbose and repetitive code which was hard to read and even harder to

src/main/java/electroblob/wizardry/util/WizardryUtilities.java

@@ -59,6 +59,9 @@ import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
 
 /**
+ * <i>"Where do you put random but useful bits and pieces? {@code WizardryUtilities} of course - the 'stuff that doesn't
+ * fit anywhere else' class!"</i>
+ * <p>
  * This class contains some useful static methods for use anywhere - items, entities, spells, events, blocks, etc.
  * Broadly speaking, these fall into the following categories:
  * <p>