Wiki editing permissions are off for renaming

[BrokenEagle]

Wiki names used to only be editable by Builder+ users, and that's what the user help wiki currently shows.

https://danbooru.donmai.us/wiki_pages/43574#dtext-builder-wiki

However, I just tested two different wikis on Testbooru, and they were both able to be renamed by a Member-level user.

http://testbooru.donmai.us/wiki_page_versions?search%5Bwiki_page_id%5D=8
http://testbooru.donmai.us/wiki_page_versions?search%5Bwiki_page_id%5D=5

Do we want to leave it this way, or go back to restricting only to Builder+? For myself, this seems like something that could be potentially abused, and once a wiki becomes renamed, it becomes difficult to find unless you know the wiki ID number.