Restore loaders, fix voting buttons and strip markdown in related titles

Summary

After dead server / rollback: lost 170 loaders in the site, voting buttons broken, titles in related post sections show markdown instead of stripped text. Reported by retoor. Need to restore loaders, fix voting buttons, strip markdown in related titles.

Steps to Reproduce

1. Not provided.

Expected Behaviour

Not provided.

Actual Behaviour

Not provided.

Environment

Not provided.

Reported by retoor via DevPlace.