Change the default body formatter for Page content type from 'long text and summary to 'long text'

From http://drupal.org/node/1378350#comment-5436402

Providing long text and summary as the default is very much forcing things upon people, especially in the initial evaluation phase. 'You can delete it if you don't need it' is not a viable answer if most of the times that's what people should be doing anyway.

From http://drupal.org/node/1378350#comment-5436484

More specifically, the Standard profile sets up the Article and Basic page content types. Both get a Body field of type text_with_summary.

Now, for the Basic page content type, the summary is pretty much pointless, since the use-case of a Basic page content is to only appear on a page on its own (commonly accessed through an associated menu link), but not in node listings.

Thus, it would make sense to change the field type on the Basic page content type.