* in dialog, placed "Save cell formulas" checkbox directly under "Save cell
  content as shown" as they are related and "Fixed column width" should be
  last
* also reordered entries in .src file for overview
* added HelpIDs, also to older "Quote all text cells" checkbox
* reordered checkbox member variables for tab order
* do not disable "Save cell content as shown" if "Save cell formulas" is
  checked, they are independent, content as shown still applies to value cells
  * changed label to "Save cell formulas instead of calculated values" for
    clarity
* initialize "Save cell formulas" with view option that was removed from
  ScDocShell::AsciiSave()