r1056 - Custom Items

• For scripting Vec3's can be created via Vec3(x, y, z) and have a few helpful functions on them
• add(ScriptVec3 other)
• subtract(ScriptVec3 other)
• double length()
• double distance(ScriptVec3 other)
• scale(double s)
• Custom Items can now be created by creating a property file and placing it in the items folder of your map.  Each property is assigned by propertyName=propertyValue and they are listed below
• itemID - ID to use for this item
• name - Name of the item
• iconIndex - Index into the item.png to use for the icon
• maxItemDamage - Maximum amount of damage this item can take
• maxStackSize - The max amount this item can be stacked
• onItemUsedScript - Name of the script file to use for when the item is clicked with
• itemUsed is filled with the item being used on script execution