Merge pull request #503 from gabizou/master

Add thew various Monster Spawn Egg blocks, fix itemByName lookup strings...
loop over all search attributes in case there are cases with more
matches.
Merge branch 'master' of https://Sleaker@github.com/MilkBowl/Vault.git
add getItemList method to grab an unmodifiablelist of registered
iteminfos.
Add a JUnit test for items.