Removed StatisticsBundle
Session handler now uses Redis
Remove non-functional cache invalidator
Removed redundant config.yml redis sessions

Already set in config_prod.yml
Removed HipChat monolog handler "nicetoknow"
Switch from using Postmark bundle to plain ol SMTP
Update via composer
Fix up e-mail sending
Fix image hosepipe image offset

Hadn't set position:relative on an image
Environment aware e-mail listener
Logstash logging output?
Add permalink URL to comment timestamps
Merge branch 'stats'