Fix: don't let robots crawl /src/.
Don't change active tab width by bolding the text.
Fix: support 
 in HTMLPurifier.
Store comment replies in editableformattedcontents.
Add editableformattedcontents for fitting descriptions.
Fix: delete editableformattedcontent after deleting comments or replies.
Fix: add fdescription in  by default.
Minor CSS tweaks.
Refactor formatted content refactoring. Use the straightforward, non-SQL way.