Log Message:
Update to 1.12.8:

Gnumeric 1.12.8

Andreas:
	* Update/fix documentation [#708679][#707075][#708556]
	* Fix paste into locked cells [#702292]

Jean:
	* Fix radio buttons behavior in covariance dialog. [#707595]
	* Add a border around font selector in cell format dialog. [#708567]

Morten:
	* Fix fuzzed file crash.  [#707875]
	* Use lighter green for function markers.  [#708573]
	* Fix item cursor problem.  [#709320]
	* Fix win32 compilation.