v4.5.0

Latest devkit-core as of 3/22/2016

• device
  • support manually setting devicePixelRation through device.setDevicePixelRatio
  • get default devicePixelRatio through device.screen.defaultDevicePixelRatio
  • all user agent flags in device.js now deprecated. Use userAgent.js
• performance
  • new performance class to track frame rate and give global performance score via performance.getPerformanceScore
  • support automatic devicePixelRatio scaling based on performance score
• userAgent
  • new userAgent class provides platform information
• DPRScaleView
  • new DPRScaleView class that listens for DPR changes and scales itself accordingly
• bug fixes
  • iOS respects disableIOSLandscapeScroll flag when resizing
  • Screen no longer flickers to black when activating filter for the first time in WebGL mode
• deprecations
  • ui.GestureView has been officially deprecated