editors/openoffice-4: Upgrade to 4.1.14 and unbreak

Upgrade openoffice-4 to version from 4.1.12 to 4.1.14 and unbreak.
The "invalid use of @return" build failure has come and gone probably
due to some other changes to ports.

Release notes for 4.1.14:

https://cwiki.apache.org/confluence/display/OOOUSERS/AOO+4.1.14+Release+Notes

Release notes for 4.1.13:

https://cwiki.apache.org/confluence/display/OOOUSERS/AOO+4.1.13+Release+Notes

Add USE_GNOME=gdkpixbuf2xlib which now seems to be necessary.

Simplify the port by always using the bundled vigra and boost rather
than making this compiler version dependent. The bundled versions
work (better) with modern clang in -std=gnu++98 mode. Also, an
upcoming version of boost will require c++14 mode. The bundled
boost needs a minor patch to work with modern clang in this mode.

Add upgrade advice to pkg-message.

Security: 6678211c-bd47-11ed-beb0-1c1b0d9ea7e6