Various improvements, bug fixes, updated examples

• Updated projects to get rid of warnings with Xcode 7.2
• Fixed #246 & #236 caused by invalid bufferByteSize values on scratch buffer lists.
• Updated examples for iOS (fixed interface builder issues causing black lines on top and bottom of iPhone 6 and newer devices)
• Updated examples for OSX

#265

EZAudioFFT & EZAudioFFTRolling

• Added classes to simplify calculating the FFT of incoming audio data in the same design as the other EZAudio components.
• Updated EZAudioFFT examples to pitch detector example

Production ready

• All updated documentation
• Cleaned up examples
• Added iOS 8 support

Updated OSX examples and added additional subclass methods to plots

0.9.1

updated to 0.9.1

OSX examples update, EZAudioDevice OSX devices, bug fixes

• Added fix from #178
• Added currentInputDevice and currentOutputDevice methods to EZAudioDevice
• Updated OSX examples to look more similar to iOS examples

Rewrote EZRecorder

• Updating recorder to use same kind of API as EZAudioFile
• Added EZRecorder delegate to get callback whenever write occurs
• Made writes synchronous
• Updated documentation EZRecorder
• Added play state delegate method to EZMicrophoneDelegate

Fixed crashes for EZMicrophone & EZOutput

• Fixed #180
• Fixed #176

Rewrote EZAudioPlotGL and removed EZAudioPlotGLKViewController

• Rewrote EZAudioPlotGL using GLKView for iOS and NSOpenGLView for OSX.
• Removed EZAudioPlotGLKViewController (no embedding in EZAudioPlotGL needed)
• Made EZAudioPlotGL layer-backed for OSX so you can add cocoa controls on top of it
• Merged similar OpenGL drawing calls and abstracted it to draw method available for subclasses to easily implement their own geometries

Rewrote EZAudioPlayer

• Rewrote EZAudioPlayer to use new EZOuput
• Added notifications for hooking into EZAudioPlayer playback state
• Fixed bugs with iOS FFT example project not setting AVAudioSession
• Fixed bugs with iOS PlayFile example project not overriding the speaker

Rewrote EZOutput using AUGraph

Now uses an AUGraph to chain together AUConverter + Mixer + Output Audio Units for a much more robust and customizable playback engine.

• Added volume and pan properties
• Added EZAudioDevice property to allow switching playback to any output hardware device
• Simplified EZOutputDataSource to one method instead of 3
• Added EZOutputDelegate to handle EZOutput audio received, device change, and playback state change calls.
• Added outputDevices to EZAudioDevice for iOS and Mac to allow enumerating output devices for EZOutput to use
• Added subclass method to allow adding in additional nodes to the graph