Minion - check/clear interrupts for all chips
Merge pull request #540 from kanoi/master

Minion - check/clear interrupts for all chips
Relax timeout in hf get header to 500ms to match the usb timeout.
Change hfa overheat limit to 90 degrees.
Check that we've cleared the pipe error after a clear request, not the err value which is unchanged.
Merge branch 'master' into libusb1018