Separate thumbnail URL and filename for easier layout customization

[johnstray]

A lot of confusion, bugs and help was sought with regards to the handling of images in the theme. So, to make things easier, the filename and the base url have been separated to make for easier customization of the layout.

This might be useful if you wish to source your images from a different server but still use the filename field stored in the post file. Eg:

    <img src="http://img-server.com/<?php echo $p['thumbnail']; ?>" alt="alternate" />

Or you can leave the default of:

    <img src="<?php echo $p['thumburl'].$p['thumbnail']; ?>" alt="alternate" />

The two variables now contain the following data:

    $p['thumburl'] = 'http://my-great-site.com/data/uploads/';
    $p['thumbnail'] = 'image-file.jpg';