Feeds Import Preview
--------------------
By MegaChriz

This module extends the Feeds module and provides a way of previewing the source
content before importing.


How it works
------------
The importer configuration page gets a new section called "Preview". In there,
there is a form that looks almost exactly like the standalone import form
provided by Feeds. Put in your source like you would normally do during a real
import.
Feeds Import Preview will then *fetch* and *parse* your source and then show you
the parsed result in a series of tables for the first 50 records. Note that the
*process* step is completely skipped during the preview.
Finally, when you're good with the preview, you can continue to the import form
and re-input your source to trigger the real import.


Notes
-----
* You will only get a preview of the parsed result, not the end result. The
  content to import may still be modified during processing.
* Sources provided at the preview form will not overwrite the sources provided
  at the import form, and vice versa. This means that if you want to import a
  source that you just previewed, you need to put it in again at the import
  form.
* Previewing a source will not trigger an import.
* Only the first 50 records of the source will be shown. This limit may be
  configurable in the future. Right now, it depends on the "feeds_process_limit"
  setting.
* You can navigate through the results using the left and right arrow keys on
  your keyboard (given that your browser supports this).