master
[build]: Add/update .gitignore files.
grohtml(1): Revise copyright notice.
src/devices/grohtml/grohtml.am: Revise copyright.
[grohtml]: Migrate to ISO C++98 Boolean literals.
src/devices/grohtml/html-table.h: Revise copyrt.
src/devices/grohtml/html-text.h: Revise copyright.
src/devices/grohtml/html.h: Revise copyright.
[grohtml]: Keep images work-withable.