Update common/buildcraft/transport/TileGenericPipe.java

same as previous commit

isPipeConnected(side) returns pipeConnections[side]

therefore, when initializing pipeConnections[side]
we need to say that pipeConnections[side]= is equal to pipe.isConnectied(t,side); which then moves from us in the direction of side, and asks if t is connected(this,side.opposite).