Add new Indonesian translation

Only about 1% of strings have been translated, so we won't make
it active yet.  At some point we need to update the LINGUAS file
and add a classifier in the setup script.

gramps/gen/utils/grampslocale.py

@@ -87,6 +87,7 @@ _LOCALE_NAMES = {
     'he': ('Hebrew_Israel', '1255', _("Hebrew")),
     'hr': ('Croatian_Croatia', '1250', _("Croatian")),
     'hu': ('Hungarian_Hungary', '1250', _("Hungarian")),
+    'id': ('Indonesian', '1057', _("Indonesian")),
     'is': ('Icelandic', '1252', _("Icelandic")),
     'it': ('Italian_Italy', '1252', _("Italian")),
     'ja': ('Japanese_Japan', '932', _("Japanese")),