Remove comment-outed code in arAkahukuLink.js
Check null to avoid err when used with AimaAimani
Fix a bug: submits spoil given commentbox row size
Adapt to new GitHub Pages domain github.io
Fix: Save as MHT fails with no akahuku_postform

(This fix is for threads archived by the site which strip a comment form)
version 5.2.90.sp_rev.13
Merge branch 'develop'