Only force logging to STDOUT in Heroku production. It's just annoying everywhere else.
[WIP#335] Update old digest email to send monthly popular protips

Generated a protips mailer

WIP: query for popular protips directly and bypass Tire and our search implementation

Added mail_view

WIP: wiring up the popular protips

WIP: cleaning up the old weekly digest so I can merge the styles and structure

WIP: formatting a popular protip email

Re-re-add MailView

Pretty close to complete on the popular protips email
Added worker and schedule for running the popular protips emailer
Updated the popular protip email to include a message about Assembly
Restore the call to render the new relic partial
Restored the New Relic integration
Revert "Removed New Relic T-Shirt offer leftover file"

This reverts commit cc981d8dc30015a5f7969e0448de9606a288d5c0.
Conditionally display the NEW_RELIC_PROMOTION via ENV variable
Removed redundant configuration for STDOUT logging
Merge pull request #189 from just3ws/master

Updated Popular Protips emailer with New Relic promotion option
Remove the logger level configuration
Only run the protip mailer popular protips if the feature is enabled
Use the user's avatar for the protip mailer popular protips
Added notes for broken "top users" job and restored the recurring CleanupProtipsAssociateZombieUpvotesJob task as a Sidekiq job
Restored the clear expired sessions task as a sidekiq job
Looks like changelogd and ashcat are broken
Restored the search sync task as a sidekiq job
Restored teams refresh task as a sidekiq job
Stacked the schedule for the jobs
Merge pull request #190 from just3ws/master

Restoring previously scheduled tasks.