jlethuau/wp-parallax-content-slider — pull request #14 by chunlaw (2013-06-08 07:02:44+00:00)
Title: Use first image as display image in content if there is no thumbnail image.

Apart from using thumbnail image, it is nice if image in content can be auto detected and pick as display.
If both of them are missing, just use default image.

The setting is basically for theme that does not support thumbnail and make the plugin depend more on the post.

I have added one file which contains the functions used.

Thank you