Gnumeric 1.3.93

Andreas:
	* Keep the recently used function list uptodate. [#156732]
	* Fix default font selection in preference dialog. [#157238]
	* Fix preference dialog window fraction selection. [#157239]
	* Make various preferences setting changes apply to the current 
	  gnumeric instance
	* Add screen page to preference dialog and fine-tune its general 
	  layout
	* Replace text entry boxes in preference dialog with
	  checkboxes and spinbuttons.

Jody:
	* Fix perl and python tests in configure
	* Fix creation of slow sheet objects when there are frozen panes
	* Fix the solver and several related reports
	* Make the solver dialog's contraint page more usable

Kasal:
	* More cleanup in configure

Morten:
	* Fix Clear-All crash.  [#157376]

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