Console log changes

Logs when the start command has been issued to help with debugging
Style changes

Bigger score text in yellow, transparent textbox, message div sized for
the speech bubbles
Changed percentage score

to a points-based score. You now get 10 points for every successful
match. Percentages are not a good way to score this game because: (i)
towards the end of the experiment, percentages only increase by a small
amount, and (ii) 200 points feels much more encouraging that 20% even
through the two are approximately equivalent by the end of the
experiment.
Please wait... on page load + points star

When the director page initially loads, it won’t allow input. Instead a
“please wait…” message is displayed until the other participant reports
being ready. Also, updated the score div for the matcher and director
pages to show a star graphic with the number of points received so far.
Points system, speech bubbles, and ready checks

Updated the JavaScript to the points system rather than percentages.
Added speech bubbles to the message div so that the task is easier to
grasp. The director and matcher pages now send a ready signal once the
pages have loaded. When both participants report being ready, the
server sends down a start signal. This prevents a situation where a
director could potentially send a word before the matcher’s page had
loaded causing the participants to get stuck in an infinity of “please
wait…”. I’ve also added an additional failsafe, where if there’s no
response from the server, a second ready signal is sent after about 10
seconds.