* Update/Completion Croatian translation
This is a big update. The croatian translation is now 100% complete.
Translated all missing strings, made lots of corrections, improved
consistency in the wording, tested thoroughly. Also, it will work
with the updated datehandler file "_date_hr.py", which i'll be
updating simultaneously.
* Croatian Datehandler update
Made changes to fit croatian specific date handling. Also because i've
updated the hr.po file. I've tested it with the present
"_datedisplay.py" of the maintainance/gramps50 branch.
Basically it would be great, if next to the obligatory "display_iso"
format, only two more formats would show up in the croatian drop-down
menus: "dd_dformat01" (numerical) and "dd_dformat04". Other formats
are unneeded.
9. 5. 2018. => ordinal numbers, all separated by spaces
9. svibnja 2018. => ordinal numbers and genitiv month's form,
all separated by spaces
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