2.1.5
gpio: Add unit tests for the plugin
Add a note about when each plugin was added
trivial: Use g_prefix_error_literal() in more places
Remove the duplicate (and legally pointless) '(C)' from copyright lines
trivial: Chain up the `GObjectClass->constructed()` vfunc
trivial: Make loading the context simpler
Do not use quirk lookups to match udev subsystems to plugins