Impose ordering on AEBlockScheduler events
Tweak to block scheduler to fix compilation issues with older compilers
Changes to bluetooth input setting: Update docs to state it's off by default, and apply the setting always, not just in recording categories.
Added splash screens for sample app
Further developed multi-channel input support, with addInputReceiver:forChannels:; refined level monitoring
Account for small time discrepancies in AEMixerBuffer
Added missing volume/pan/channelIsMuted properties to AEPlaythroughChannel