I think this is reasonable with debug builds, the import filter
should check the values are in sensible ranges.

This should be technically the same like before, only the next one
to read this will hopefully get less confused than I did.

that includes having a good default value, otherwise the whole
creation of the rule in ListDef::CreateNumberingRules bails out
with IllegalArgumentException

Use "using" declarations instead of a pragma. Gets rid of the warnings
completely instead of making them non-errors in a -Werror compilation.

* 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()

This reverts commit 192edc5e.

The method must be called Notify so the SfxBroadcaster calls it instead
of the base class method that does nothing.

boost::ptr_vector::erase() will delete the element, but fortunately there
is a transfer() method that can be used here.