Default icon for when menu image has not been assigned.

Related to #10.
Sticky posts.

Relates to #10.
Extending embeds to 100% width too.

Relates to #10.
Edge case: long single-word title.

Relates to #10.
Fixing title and subtitle styles whether any combination (or none of them) are present.

Relates to #10.
Fixed word wrap for <pre> tags.

Relates to #10.
Fixed trackback spacing.

Relates to #10.