Revert "Initial commit for Programming Assignment 2"

This reverts commit 27987823fcf81d46a5e2186391addd87c079b879.

Conflicts:
	README.md
	cachematrix.R
Revert "Revert "Initial commit for Programming Assignment 2""

This reverts commit 11c5e5738406943f18802130509d8b7f57d44dba.