An attempted fix to issue #18

[Tumbler]

Added a three second sleep to pin_red and pin_blue as discussed in Issue #18

[boboquack]

I'm just wondering whether on_message works for each message and can run concurrently with another instance of itself. If so, the same problem would occur, because the two teams messages would be pinned the same distance apart anyway, just 3 seconds later. A fix, in this case, might be to have one team pinned immediately but the other team pinned, for example, 5 seconds later, but this is also risky because at the start of the game many new teams and team editions can be posted in short succession.