It don't work
Revert "It don't work"

This reverts commit 642c7ee4aa5d24a54255efefd022432d409be64a.
Revert "More refactoring for matching game code"

This reverts commit 83f02abce3f0121afbab04caed34bd3877ee5c20.
Revert "Fleshing out implementation of methods and properties for CardMatchingGame"

This reverts commit 164cd3c5ea9030383f252859e2dd31233210846b.
Finally got Card Matching Game working. Only Lecture number 3...