Merge pull request #1 from Nmuta/93928425_about_asserts

about asserts

[Delivers #93928425]
Merge pull request #2 from Nmuta/jones_much_ado_about_nil

about_nil.rb  tests
Fixed Everything_is_an_object method

** Noted: ints, floats, strings, nil, and Objects all descend from Object master class

[#49135003]
fixed test_objects_can_be_converted_to_strings method

** Noted that nil.to_s resolves to an empty string
** Noted that 123.to_s simply converts the int to string as expected

[#49135003]
fixed final test
** This test proves that cloned objects are new objects and have their own unique ids
[#49135003]