Newly localized properties

<https://gerrit.libreoffice.org/#/c/49414/> 
"/org...Writer/Insert/Caption/CaptionOrderNumberingFirst should be 
localized" and <https://gerrit.libreoffice.org/#/c/49433/> 
"/org.openoffice.Office.Writer/Layout/Other/TabStop should be localized" 
will cause the Option dialog's

* "LibreOffice Writer - AutoCaption - Caption Order"

and

* "LibreOffice Writer - General - Settings - Tab stops"

settings to be localized.  That is, changes made to these two settings 
while LO is being run in one locale will no longer affect other locales. 
 (With one exception, due to how the configuration works:  Changes made 
in the en-US locale will also be seen in other locales, unless changes 
are explicitly made in those other locales, too.)  (Plus, there's some 
havoc caused by the bugs that are now being fixed wrt existing user 
installations.  See the two Gerrit changes' commit messages for details.)