[CHG] New `[CHG]` tag in the gitmessage template
[CHG] New `[CHG]` tag in the gitmessage template

Many `[REF]` commits weren't refactoring (see
https://stackoverflow.com/a/1028202/3235496 for a clear explanation of
the difference between refactoring and other changes to code).

morinim/vita,morinim/vita,morinim/vita