factors MS uses.
- Size the window better.
- Explicitly leak the memory associated with the comments in XL97.  Hopefully,
  someone will fix it.

2000-01-10  Jody Goldberg <jgoldberg@home.com>

	* ms-obj.c (ms_read_TXO) : Return the string generated rather than
	  leaking it.
	(ms_read_OBJ) : Don't warn about comments, they are not sheet objects
	  which breaks the whole function of this routine but they are not
	  unexpected.  If we can figur eout how to store the string associated
	  with the TXO nearby with this object and get that cleaned up on
	  time and referencable by obj-ID then we can fix comment import.

	* ms-excel-read.c (ms_excel_read_sheet) : Improve handling for
	  WINDOW1 and warn about more unsupported cases.  Tweak zoom factor
	  by 1.4 to be less ugly. (ICK !  HACK!)
	(ms_excel_read_workbook) : WINDOW2 is a sheet level
	  descriptor.  Add handle for WINDOW1.
	(ms_excel_sheet_new) : ICK!  hard code a scale
	  factor of 1.4 to get things to be less ugly.