Fixes dupe exception (#258)

- [X] Cleans up ActivatorUtil
- [X] Fixes dupe exception
- [X] Fixes a bug in BasePotion
- [X] Fixes a few possible memory leaks

Bumps release version

Projects/UOContent/Commands/Generic/Extensions/Compilers/DistinctCompiler.cs

@@ -248,7 +248,7 @@ namespace Server.Commands.Generic
 
             var comparerType = typeBuilder.CreateType();
 
-            return (IComparer<T>)ActivatorUtil.CreateInstance(comparerType);
+            return comparerType.CreateInstance<IComparer<T>>();
         }
     }
 }