Declare the right margin of the over18 div

This fixes the issue discussed in #1096.
Add country code to DebugFooter.
POST_update_pay: compare dates not full datetimes.
Listingcontroller:  Optionally display banned userpages
Let sponsors view spam users' promoted pages.
Link.add_props: set gilded_message only if it will be displayed.
Make editreddit routing rule more specific.
Fix tabindex on login form.
Use PromotePage instead of Reddit for edit_promo template.
Use disabled state instead of hiding button on image uploader.
Cleanup promoted page templates.
Fix styles for new markup.
Revert before applying new styles.
Always use correct colspan when editing a campaign.
Query: add offset option to jump to a specific row.
Store global defaults in LocalizedDefaultSubreddits.
Get defaults from LocalizedDefaultSubreddits instead of top_lang_srs.
inventory: Use LocalizedDefaultSubreddits instead of top_lang_srs.
Delete SubredditPopularityByLanguage.
Pick random subreddit using query offset.
Delete pop_reddits.