fixed some admin UI issues; removed extraneous code; added option to show/hide link in node's  [#440724]

Thanks to maartenvd

http://drupal.org/node/121376

http://drupal.org/node/111391

Thanks to themoebius for sending me a pre-packaged, all-in-one working version.

 - Added ability to specify "read more" text in admin settings.
 - Cleaned up wording of settings descriptions, etc.
 - Settings now enabled by default, so that there is no need to visit the
   settings page after enabling the module.

Initial commit of "read more" tweak module.  This allows you to place the "read more" link inline at the end of the teaser, or just below it.

Implements the technique described at:
http://www.angrydonuts.com/the_nuisance_of_the_read_more_fl

See also: http://exodusdev.com/drupal/4.7/modules/ed_readmore.module