2008-09-18  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/commands.c (CmdAnalysis_Tool): add field
	(cmd_analysis_tool_undo): delete associated sheet objects
	(cmd_analysis_tool_draw_old_so): new
	(cmd_analysis_tool_redo): use the above
	(cmd_analysis_tool_finalize): handle new fields

2008-09-18  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* analysis-histogram.c (analysis_tool_histogram_engine_run): we need to 
	keep the values around for potential redos.
	(analysis_tool_histogram_engine): clean up when asked to do so.
	* analysis-tools.h (analysis_tool_generic_clean): needs to be non-static
	* analysis-tools.c (analysis_tool_generic_clean): make non-static
	  and remove unneeded argument. Change all callers.
	* dao.h (data_analysis_output_t): add fields
	(dao_free): new
	(dao_surrender_so): new
	(dao_set_omit_so): new
	* dao.c (dao_free): new
	(dao_surrender_so): new
	(dao_set_omit_so): new
	(dao_init): handle new fields
	(dao_set_sheet_object): don't write sheet objects when omit_so is true.


svn path=/trunk/; revision=16807