Support for Arduino 1.8.5
USBHost_t36: HID parsing, improved Mouse driver, new Joystick driver, hub driver fixes, idVendor() & idProduct() functions, keyboard improvements (Kurt)
Audio: fix stereo DAC right channel bug, fix DAC clipping overflow issue, fix FFT256 with LTO optimize (Frank)
Updated: Snooze, FastCRC, i2c_t3, TinyGPS, TeensyThreads
Fix systick hang when yield() overridden
Show warning for certain counterfeit boards, but still allow upload
Linux Teensy Loader now uses udev to find USB devices
Fix delay when uploading on Linux
Fix missing upload error messages in newer Arduino
Fix race condition causing "Teensy Loader is unable to read your compiled sketch (r)" 


Since 1.40-beta3

Update FastCRC & TeensyThreads
USBHost_t36 idVendor() & idProduct() functions
Fix Audio FFT256 with LTO optimize (Frank)