Additions:
- Added RunCommand Objective (Player has to run a command)
- Added Interact Objective (This one is cool. It's triggered when the player either right- or left-clicks a specific blocks (or a block in a distance around it) x times.) Useful for, as an example, “Find my fishing rod” Objective.

Example command usage for the Interact Objective:

This would make the player interact with the block at X: 64 Y: 67 Z: -152 in the world “Notlands”. The interaction is cancelled (so, for example, if it's a door he has to right-click, the door wouldn't open). Both left-clicks and right-clicks count. And, it's enough if every block in a distance of 3 blocks around the location is clicked.