!move command fix, slot # needed to be read as int

onStatusError ==>  15 room.bfe784b.js:26
Server Error ==>  Unknown endpoint room.bfe784b.js:26
0 = U
1 = n
2 = k
3 = n
4 = o
5 = w
6 = n
7 =
8 = e
9 = n
10 = d
11 = p
12 = o
13 = i
14 = n
15 = t