Removing no longer existing function
missing wrapper call
Minor type consistency issue
Fixing issue in _setSpeaker
globalising PluginChain like AudioClock
Support for audioMasterIOChanged
Making silence source slightly more useful
Relaxing sample buffer to allow zero-sized buffers
Introducing sampleBufferCopyAndMapChannelsAdvanced
Fixing an issue regarding writing chunks of varying sizes
introducing readInput and writeOutput
Supporting buffer delay compensation and simplifying handling of head skip and tail time

  Fixes #164