Fixed failing test in about_asserts.rb

* Learned that assert has a second optional
  argument that contains additional information
  to help figure why the test is failing

[#54145607]
Fixed failing test in about_asserts.rb

* helpful for debugging a failed test

* Passing boolean options to assert will pass
  or fail based on whether the boolean is true
  or false

[#54145607]
Fixed failing test in about_asserts.rb

* Gives expected value

* Sometimes a value is just a value

[#54145607]
Fixed failing test in about_asserts.rb

* Gives expected value

[#54145607]
Fixed failing test in about_asserts.rb

* Gives expected value

[#54145607]
Ruby Koans about_objects.rb

 * (almost) everything in Ruby is an object

 * even nil & objects are objects.

[#54145627]
Ruby Koans about_objects.rb

 * objects can be made into strings

 * nil returns "", ! an empty string

[#54145627]
Ruby Koans about_objects.rb

 * objects can be inspected with .inspect

 * returns the contents of the object

 * nil returns "nil", unusual!

[#54145627]
Ruby Koans about_objects.rb

 * objects have ids of class Fixnum

 * id found with .object_id

 * Are id's unique?

[#54145627]
Ruby Koans about_objects.rb

 * objects do have unique id's!

[#54145627]
Ruby Koans about_objects.rb

 * small integers have fixed ids

 * ids have a pattern.

[#54145627]
Ruby Koans about_objects.rb

 * all objects do have unique ids!

 * even .clone creates unique id.

[#54145627]
Merge branch '54145627_about_objects_master' of github.com:bayendor/ruby_koans_bayendor into 54145627_about_objects_master