Fixed typos
Initial setup for exercise 2
Make first test pass
Added test for FizzBuzz( 0 )
Added test and changes for negative upperLimit
Add initial "Fizz" generation

Extracted FizzBuzz logic from counting. Added test for Fizz and code to
pass.
Added tests for multiple of 3
Added initial "Buzz" generation
Added test for multiple of 5

Initial implementation of "Buzz" generation was derived from "Fizz"
generation and therefore was technically not the "simplest thing that
could work" hence this test passed without any additional changes.
Added "FizzBuzz" generation
Simplified FizzBuzz generation
Final test and clean up
Updated readme
Fixing merge conflicts