v0.5.1

• Fegg 5.x docs (/docs/fegg/next/): every CMS action that changes data must call requirePost() first; this is new in Fegg 5, so CMS controllers copied from Fegg 4 need it added (see the migration guide)
• Fegg 5.x docs: which controller methods can be called from a URL, Basic authentication checked before the controller runs, CMS sessions of deleted users, and the first CMS user created only while cms_user is empty