OP-1532 fix non-ppm mode

Always send packets from the coordinator.
Previously the coordinator only always sent packets
on channel 0. This scheme doesn't work with
with the change to use 32 channel.
Merge remote-tracking branch 'origin/next' into thread/OP-1525_Acro_GUI
OP-1525 Changed some minor gui stuff.
OP-1525 Changed some colors and sizes.