TaskObstacleDriver class inherits from Task: First task added to task collection for an obstacle; much simpler logic vs. other units, as obstacles have very few other tasks that can be added
Merge branch 'master' of https://github.com/toecto/opocraft

Conflicts:
	development/OppoCraft_v1.0/OppoCraft_v1.0/Task/TaskObstacleDriver.cs
EntityForest class inherits from MapEntity: onStart() method is responsible for creating trees throughout a given set of coordinates