Merge pull request #2 from rwestweb/48449041_about_nil_master

about nil master

[Delivers #48449041]
make test_everything_is_an_object true in all cases

* Recall everythign in Ruby is an object
* Reminded that even nil is an object
[#48449045]
make test_objects_can_be_converted_to_strings pass

* "something" is the same as something.to_s
* "" is same as nil.to_s
[#48449045]
fix test_objects_can_be_inspected to true

* returns the contents of the environment as a string
* method implemented by all objects
* like inspect, to_s also returns a string representation of an object
[#48449045]
make test_every_object_has_an_id show that id is a fixnum

* assert_equal Fixnum, obj.object_id.class
[#48449045]
make test_every_object_has_different_id true

* object id's are not equal

[#48449045]
make test_small_integers_have_fixed_ids true

* small numbers are 2 * their ids + 1
[#48449045]
fix test_clone_creates_a_different_object to show different

* show every object has a different id even when cloned
* a cloned object is not the same as the orignal object that was cloned
[#48449045]