Adds two new features to collect and show useful analytics.
Usage Statistics:
* Begin tracking daily active users who log in and interact with major features
of the website each day, such as the chat room, forum and gallery.
Demographics page:
* For marketing, the home page now shows live statistics about the breakdown of
content (explicit vs. non-explicit) on the site, and the /insights page gives
a lot more data in detail.
* Show the percent split in photo gallery content and how many users opt-in or
share explicit content on the site.
* Show high-level demographics of the members (by age range, gender, orientation)
Misc cleanup:
* Rearrange model list in data export to match the auto-create statements.
* In data exports, include the forum_memberships, push_notifications and
usage_statistics tables.
* A reason must be entered to impersonate a user, and it triggers a
Report and email notification to the admin.
* User gallery pages will show at the top whether the user had granted
you access to their private photos.
* Add setting to mark profile as "private"
* If a profile is private you can't see their profile page or user photo
gallery unless you are friends (or admin)
* The Site Gallery never shows pictures from private profiles.
* Add HTML5 drag/drop upload support for photo gallery.
* Suppress SQL logging except in debug mode.
* Clean up extra logs.
* Add impersonate feature
* Add ban/unban user feature
* Add promote/demote admin status feature
* Add admin user deletion feature
* Admin ability to see other status certification pics
* Nav bar indicator of pending admin actions such as cert pics
needing approval
* Admin ability to search cert pics for specific user
