Groups.io: Changelog

SYSADMIN: Reduced comcast.net karld concurrency from 20 to 10.
SYSADMIN: Reduced cox.net karld concurrency from 10 to 5.
INTERNAL: Optimized the replacement of email addresses in messages with links to user profiles.
INTERNAL: Fixed some database indices.
SYSADMIN: Adjusted main database parameters to deal with the current load.
SYSADMIN: Moved pgbouncer off main database machine to its own dedicated instance.
INTERNAL: Changed the forcesummaries process to use database replicas.
INTERNAL: Added additional stats graphing to the internal monitoring dashboard.

INTERNAL: Changed how we were limiting email sent to some domains, to use the MX server domain as a key for limiting instead of the receipient's domain. This will affect all messages to GoDaddy hosted domains, orange.fr/wanadoo.fr, earthlink/mindspring/netcom and a couple others. This will hopefully allow us to keep under per-connection limits imposed by these email service providers and avoid getting temporarily blocked for trying to send too much email at one time.
INTERNAL: Technical debt cleanup of web page templates. An ongoing process.
CHANGE: Updated the Help Center manuals with updates from Nina.
API: /downloadarchives was not returning the messages in ascending date order.
CHANGE: Allow 'list-style-type' styling in user generated content.
CHANGE: Some formatting tweaks to the Member page, including displaying the member's timezone.
CHANGE: Changed 'Unsubscribe' button in the Subscription page to 'Leave Group' to be more clear.
SYSADMIN: Switched primary database machines because of continuing (minor) corruption issues.
CHANGE: When viewing a member's information on mobile, changed the nav buttons at the top to a dropdown instead. Also fixed several navigation bugs when viewing past members.

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