add testcase for displaying the round number on screen
display round number on screen
add testcases for Simon's actions at the start of a new round

the testcases are failing due to missing functions pickRandomColor(), replaySequence() and nextRound()
add missing functions pickRandomColor(), replaySequence() & nextRound()

the testcases are now failing like expected
implement Simon's actions at the start of a new round

the testcases are passing as intended.
however, we haven't implemented pickRandomColor() so the sequence gets filled
with undefined instead of actual colors... we need to add one more test
add testcase verifying the entry added to the sequence during a new round

the testcase is failing, exposing the missing implementation of pickRandomColor()
implement the random selection of a color/sound

the testcases are now passing as intended.

notice the game design document didn't state the random selection had to be fair.
therefore the testcase doesn't check that and merely ensures the new entry is valid.

in the interest of making the game, well.. interesting, the implementation went
overboard to ensure fairness, but returning 'blue' all the time would also have
been a valid if not predictable solution.
add color buttons to animate during Simon's turn

also start Round #1 once page is loaded