don't crash if there is no output
don't set _lastInputLoudness if input is muted
add the resample library to interface
Revert "add the resample library to interface"

This reverts commit 67d9bc0b14f31e924ffb884f319ff05441c8b46a.
Merge branch 'master' of github.com:worklist/hifi into qt-for-portaudio
initial work for change to 48KHz
change ring buffer to interleaved for stereo
remove a debug line
copy all passed samples to AudioRingBuffer
repair linear resampling for same number of channels
cleanup AudioRingBuffer API
changes for broken test
added basic support for hit particles with the palm of the hand
first cut at splitting out scripting engine from agent to add to client
implement OctreeScriptingInterface base class to share common behavior for particle and voxel scripting
first cut at client scripts working
properly connect signals and slots to shut down script properly, fix null termination in script file load
multiple scripts running at same time, menu interface for scripts
tweaks to script engine shutdown behavior
correct handleing of app shutdown and scripting enging termination