Initial commit, added jade to lib
Started on the sceleton code for the TraderAgent, added TradableItem which the agents will trade for and a few static methods to help genereate those items
Added toString to tradableItem which is meant to be used in Jade messages since they are Strings
Added TradeDeal which represent a deal between agents. Added lots of methods to handle negotiation in TraderAgent, added Serializable to TradableItem
Added toString to TradeDeal