Release notes 2018 05 08

There have been several changes in the database and the gateway:

/universe will now return the transformed version per default, use /universe?transform=0 to get the original as retuned from the database
the module "ui" has been renamed to "extensions" (extensions.widget, extensions.query, extensions.file etc)
new endpoint /data/$module/$entity/{{id}}/log for the log history of changes to an instance. Look in universe for "instanceLogUrl", "instanceLogVerb", "instanceLogParameters"
similarity search is now supported (https://github.com/iron-api/ironapi-gw/wiki/General-Queries#ordering)
new join syntax ($module__$entity instead of $module_entity) to ensure unambiguity (https://github.com/iron-api/ironapi-gw/wiki/General-Queries#join-and-prefetch)
widgets can now have more than one query associated, so instead of the column widget.query, there is a table extensions.widget_query referencing to it