Specify local browsers for wct
Specify local browsers for wct

Tests are going to fail of FF right now and I'd rather not bother at the
moment though rest assured, FF and others will be supported in the
future.

MagnonGames/DTile,theMagnon/DTile,MagnonGames/DTile,MagnonGames/DTile,theMagnon/DTile,theMagnon/DTile