Update links on the rules page
Add "random" comment sort.
Add "contest mode" for fairer best of 2012 voting threads.

When contest mode is enabled:

 * Comments are randomly sorted.
 * Comment scores are hidden.
 * Replies to top-level comments are hidden behind a toggle button.
Upgrade to Pylons 0.9.7.
Remove legacy buffet template renderer abstraction layer.
Use a User-Agent for suggest title urlopen()

This will fix the 429 errors on reddit urls (rate-limiting ourselves)
Attempt to remove site name from the end of title suggestions
Right-align 'suggest title' button
Expose user over_18 setting to the me.json API.
Domainban:  Use a global watch
Add DateRange validation to /promoted/graph

* Add option to limit VDateRange to a maximum range
* Make datepicker slightly more flexible
* Show error on bad date ranges on /promoted/graph
Make rising usable from various fake subreddits as well.
Use c instead of _DefaultSR to cache sr_ids.

_DefaultSR is a global instance and lives beyond a single request.