Refactored examples

Author: pablogsal

a_star/test_a_star.py renamed to examples/maze_solving_example.py

@@ -112,7 +112,7 @@ def from_id_width(point, width):
 
 if __name__ == '__main__':
 
-     import a_star
+     import a_star.a_star as a_star
      import random
 
      # Construct a cool wall collection from this aparently arbitraty points.