Reset @column_defaults when assigning .
ActionController::Live documentation in the guides.

I'm adding documentation to the action_controller_overview guide which
should tell people how to stream arbitrary data.
it's xml, not json

change docs for xml serializer to talk about xml
Merge pull request #11427 from jmondo/patch-1

it's xml, not json
Merge pull request #11426 from wangjohn/action_controller_live_docs

ActionController::Live documentation in the guides.
[ci-skip] Update link, tweak UglifyJS
Merge pull request #11428 from evangoer/minor_asset_pipeline_docfix

Update YUI Compressor link; tweak UglifyJS
This is not needed anymore, before_initialize block can access config
Merge pull request #11424 from kennyj/fix_column_defaults_caching

Reset @column_defaults when assigning locking_column.