Created tasks for documentation generation
Revised documentation
Filled out tests:

test/hill_climb_test.rb

* test_that_prepare_each_run_sets_initial_run_to_false
* test_that_jump_back_decreases_path_size
* test_that_jump_back_changes_current_point_to_most_recent
* test_that_jump_back_increases_banned_points_size_by_1
* test_that_jump_back_adds_current_point_to_banned_points