Clean up a bunch of TODOs that are no longer relevant

src/main/java/electroblob/wizardry/spell/Paralysis.java

@@ -95,8 +95,6 @@ public class Paralysis extends SpellRay {
 	
 	// See WizardryClientEventHandler for prevention of players' movement under the effects of paralysis
 	
-	// TODO: (Animated?) screen overlay effect for paralysed players in first-person
-	
 	@SubscribeEvent
 	public static void onLivingUpdateEvent(LivingUpdateEvent event){
 		// Disables entities' AI when under the effects of paralysis and re-enables it on the last update of the effect

src/main/java/electroblob/wizardry/spell/PocketWorkbench.java

@@ -22,7 +22,6 @@ public class PocketWorkbench extends Spell {
 	@Override
 	public boolean cast(World world, EntityPlayer caster, EnumHand hand, int ticksInUse, SpellModifiers modifiers){
 
-		// TODO: Investigate possible item duplication bug with this spell. So far I have been unable to recreate it.
 		if(!world.isRemote){
 			caster.openGui(Wizardry.instance, WizardryGuiHandler.PORTABLE_CRAFTING, world, (int)caster.posX,
 					(int)caster.posY, (int)caster.posZ);

src/main/java/electroblob/wizardry/spell/Possession.java

@@ -148,7 +148,7 @@ public class Possession extends SpellRay {
 		if(!shootSpell(world, origin, look, caster, ticksInUse, modifiers)) return false;
 
 //		if(casterSwingsArm(world, caster, hand, ticksInUse, modifiers)) caster.swingArm(hand);
-		this.playSound(world, caster, ticksInUse, -1, modifiers, "possess"); // TODO: There must be a better way...
+		this.playSound(world, caster, ticksInUse, -1, modifiers, "possess");
 		return true;
 	}
 

src/main/java/electroblob/wizardry/spell/Spell.java

@@ -305,7 +305,7 @@ public abstract class Spell extends IForgeRegistryEntry.Impl<Spell> implements C
 					.map(s -> s.properties).toArray(SpellProperties[]::new)));
 		}else{
 			// On the client side, wipe the spell properties so the new ones can be set
-			// TESTME: Can we guarantee this happens before the packet arrives?
+			// Not sure if we can guarantee this happens before the packet arrives, but it hasn't caused any problems yet!
 			clearProperties();
 		}
 	}