Copter-3.6 betas unavailable for a few days as we beta test Copter-3.5.6-rc1

We need to put the Copter-3.6 beta testing on-hold for 3 or 4 days so that we can beta test Copter-3.5.6-rc1 which includes a small but important fix to the safety switch behaviour.

If people want to give 3.5.6-rc1 a try that would be greatly appreciated. It’s a fairly low risk change so we expect the beta period will only be 3 or 4 days long and then we will get back to Copter-3.6.

By the way, the safety switch behaviour change is already included in Copter-3.6.