Revert "Revert "Removed periods from headers""

This reverts commit dca5d6cb61637c3cb6c9690b7bbbba6cd86ab796.
Revert "Fixed display of h2 elements in posts list"

This reverts commit c1e9ee3821e698ade54083afc6b2d49f02364c60.
Revert "Removed kitten placeholder :("

This reverts commit eb1c5177f3de2bfa5e12e86294ae2ce1eecae5f5.