initial rails 4 port
disable caching in entries controller
remove config.version
switch to unicorn?
add rails_12factor
Revert "remove config.version"

This reverts commit 9a1317b35ee2ae087b6ded1c9c3496b139d2d67a.
enable http caching, remove tags, use strong_parameters
debug logging on staging
take two.
use 12factor in staging?
fix logging?
another try.
pass config to rails logger
caching, deprecation, logging fixes

atom feeds are now properly cached
index updates, escaping fixes, remove deprecations, caching fixes/improvements