Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
This resolves an inconsistency between Pcbnew and FP editor that means
default dimension properties cannot be set in the FP editor, but the
dimension line widths and text sizes _can_, which can lead to mismatches
between different parts of the same dimension that can't be prevented
except retroactively using the properties tools.
If we keep doing design validations at two different places, they can
only start to drift apart. Board Setup should validate for malformed
data ONLY; everything else is the business of DRC.
This also fixes a bug where implementation validations would not allow
OK in the dialog, but wouldn't put up a message to say why. We now use
the InfoBar impl from Jon's commit for that.
For some kinds of issues, we want a way to point them out but
we don't need to keep the user from being able to close the
dialog. A separate Validate button lets the user check for
issues if desired, but these issues are not "fatal" and can
be ignored if the user wishes.
