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 22ec16c06540cbd731862d24e2b3f259a794390e.
Merge remote-tracking branch 'origin/master'