final change
true final
moved everything to orig
PIL ver.3 Review: Chapter 1 and 2

I am beginning the review of lua. Here I have done just chapter 1 and 2.

 On branch review
 Changes to be committed:
   (use "git reset HEAD <file>..." to unstage)

	new file:   1.1.lua
	new file:   2.1.lua
	new file:   first.lua
	new file:   type_value.lua
Done with ch3

 On branch review
 Changes to be committed:

	new file:   3.1.lua
	new file:   expressions.lua
ch5 done
Functions and iterators/generators done

So after doing some reviewing, I got to finish the generators and and functions
sections in the book.
On branch review
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

      new file:   6.1.lua
      new file:   6.2.lua
      new file:   7.1.lua
      new file:   7.2.lua
      new file:   7.3.lua
      new file:   7.4.lua
      new file:   functions_2.lua
      new file:   iterators_generators.lua
Updated the directory order.

Most of the work Has been reorganized to better fit the constant change in
production over the reviews. That and it helps to make the source look
pretty.