Create 0.11 tag from 0.11-rc (belatedly)

Prep for v/0.11 release vote

Tagging 0.10 RC for vote

Tag for Pony Mail release 0.9

minor fixes

check that 'alt' is a thing.

update changelog

switch back to sorting by date

this works again, possibly due to the better archiving. And as epoch
sometimes makes a bad 'find first year' result, it's better to use this.

remove shift-ins in atom feed

they cause the feed to bork

Tagging as 0.3

Tagging as 0.2a