Revert "gnumeric: version bumped to 1.12.0."

requires gtk+-3 fix our gnome-3 section, then we can talk about
that again.

This reverts commit 6dcdf71eb119f9b6b9e2f86f0e45eae3413eec24.
Revert "goffice: version bumped to 0.10.0."

the new gnumeric requires gtk+-3 and the old one doesn't
work with goffice 0.10. Fix gnome-3 , _then_ we can talk about it...

This reverts commit 0b8104c37e9ff2615b00ca5ee7438480592f6592.