Quest improvement: Commands + Rewards

[mitchkm]

Quests should be genericized further to include the ability to give out commands as quests and also add a reward for the quest receiver.

[mitchkm]

When rewards are designated, the server should hold the items/resource away from the quest giver in limbo till the quest ends in completion or failure. This way the quest giver cannot be without such resources when the quest is completed and rewards given to the quest reciever.