Thread:Support/Changing Japanese namespace names of MediaWiki

According to discussion at Thread:Portal talk:Ja/名前空間の翻訳、そろそろ再開しましょう, we decided to change Japanese namespace names of MediaWiki.


 * summary
 * translate Category, Template, Help into Japanese (Katakana)
 * change delimiter of talk namespace, from "‐"(U+0x2010) to "・"(U+0x30FB).
 * In Japanese keyborad (JIS Keyborad), it's a little hard to input "‐". And it's confused "-"(U+0x002D).
 * change translation of talk, from "ノート" and "会話" (used at only User talk) to "トーク".
 * "ノート" means (is Katakana-ized word of) "note". "トーク" means (is Katakana-ized word of) "talk"

We need your support:
 * I know we can use Special:AdvancedTranslate, but it can't make alias of old names.
 * How can/should we notice this change to Japanese MediaWiki users/system admins/developers?
 * When does this change begin to be used? Next MediaWiki revs? Through mw:Extension:LocalisationUpdate?