Browsing Basque translation

The following are the known values of some of these text attributes.
These values were found in the Atk documentation at:
http://developer.gnome.org/atk/stable/AtkText.html#AtkTextAttribute
No doubt there will be more, and as they are found, they can be added
to this table so they can be translated.

Translators: this is one of the text attribute values for the following
text attributes: "invisible", "editable", bg-full-height", "strikethrough",
"bg-stipple" and "fg-stipple".
See:
http://developer.gnome.org/atk/stable/AtkText.html#AtkTextAttribute