Use safe mode for markdown parser
Show only distinct questions when searching for user
Modify e-mail settings to send immediately for questions answered by the user
Allow anyone to upvote
Fix link spelling
try to avoid storing revisions if not needed
Force fixed-width font in code, pre
Partial revert of 5507b1c88cba; all posts must have at least one revision to be editable
Use escaping for unknown html instead of replacing with standard-text