v0.4
Rob Herring
github workflow: Attempt to fix version in doc
Add 'vibrator' to list of generic node names
Add .pyc files to .gitignore
Fix python3 compatibility and switch travis to python3
Add DCO 1.1 file
Update FAQ release location and frequency questions
Update Arm copyright years thru 2021
Trivial: Add SPDX tags to source files
Update copyright dates and revision history
README: Update Rob's email address
Remove documenting include directive from TODO list