Platypush is heavily multi-threaded, and it can happen that some
transactions are handled in different threads - and consistency
is managed by the application itself.
- Support for permanent cross-process storage of session variables through SQLite db
- Support for db.select with table+filter instead of raw SQL query
- Using `@action` annotation to indicate methods that are allowed to be
executed as actions
- The output and errors of an action are automatically wrapped into a
`Response` object without any response build required on the plugin side
