* Added a binary attachment operator (`@`).
* `tweak.etl`: insert, merge, update and delete commands
(PostgreSQL only, work in progress)
* `tweak.django`: fixed the introspector missing auto-created
+ many-to-many models, respect Django transaction context.
+* `htsql-ctl shell`: improved output of `describe` command,
+ allow multi-line queries when the input is not TTY.
* Configuration: added support for `!include` tag.
* Reduced memory footprint for large database schemas.
* Improved error reporting.