updated licence

Merge pull request #36 from AshishS-1123/generation_algorithms

Merge branch 'master' into generation_algorithms

Merge pull request #35 from AshishS-1123/test-bug-fixes

Created example file for binary tree algorithm

Added binary tree algorithm in quick_start.py

Added unittests for algorithm.py

Added binary tree algorithm for maze generation

Added optional param 'algorithm' to Maze.generate_maze

Moved maze genertion algorithm to 'algorithm.py'

Python 3 Compatibility fixes

Fixed unittests in cell_tests.py

Changed time.clock to time.time

Merge pull request #34 from jostbr/revert-33-develop

Revert "Circular Maze"