Allow pixels on c.secure pageviews.

The pixel system is now HTTPS-ready so we can use pixels safely on
c.secure requests.
Prevent text wrapping artifact upon left bar collapse.
Gold partners: add UPS
Tweak minimum spotlight box heights.

This adds specific heights for compressed and non-compressed links.
Allow interest bar to size naturally.
Normalize thumbnail heights.

The font size of the a.thumbnail element was causing inconsistent
vertical spacing across browsers. This tweak attempts to replace it with
a consistent 2px bottom margin.
Increase specificity of compressed link styles.
Add .compressed class to items in the spotlight box where appropriate.

This was causing promoted links to display with the 2 line tagline
formatting even though they did not have a thumbnail.
Gold partners: update iFixit logo / Rover title
Only display secure media objects when on HTTPS.

Not all links that have media objects will have secure media objects, so
a subset of content will have embeds when accessing the site over HTTPS.
Automatic gold messages: add "bottlecap" phrases

This allows defining a set of phrases on a wiki page, and whenever an
automatic gold-related PM is sent, a random phrase is selected and
appended to the message.
System Messages:  Send out 'moderator added' notifications again
"Your comment was gilded" message: update text
Gold partners: add link to /r/goldbenefits thread
Make analytics selector more selective.

Promote_Graph rows use 'promotedlink' and 'promoted' classes to get
the same styling as promoted links. Their destination urls were getting
rewritten by analytics.js which was treating them as real promoted links.
OAuth: add new "history" and "save" scopes

history: gives access to voting history, saved and hidden
save: allows save/unsave for submissions and comments
Email:  Use non-hardcache ban fetching system
Add default for new cake system.
Return empty dict if metric_name is not found in PromoMetrics.
Update promoted link emails.