Added needed function stub and test
fixed wrong coordinate
Introduce helper method to create path from 2d coords
Extend PathFinderConfig with isGoal predicate

This allows a client to be more flexible regarding the condition if the
goal is reached.  By default, we assume that we really want to find the
specified goal and nothing else.
Enable findArea spec

Changed the path cost from 4 to 3, because we stop prior to the goal
Adapt findArea to fail on empty goal list
Merge pull request #13 from svenkeidel/find-path-to-area

Find path to area