We currently use both spellings the british "behaviour" and the american
"behavior". However "behavior" is more used in the project so I think
it's worth dropping the british name.
Closes#6395
This reverts commit 3862c37b6373a55ca704171d45ba5ee91dec2c9f.
That fix should either be done differently or with an option.
Reported-by: asavah on github
Fixes#6157Closes#6183
Instead of discussing if there's value or meaning (implied or not) in
the colors, let's use words without the same possibly negative
associations.
Closes#5546
Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.
Removed three (mostly usesless) README files from docs/
Closes#5141