[ansel] Patch for watermark placeholders and GD fonts

[Chuck Hagenbuch]

Quoting "Heath S. Hendrickson" <heath at outerspaceconsultants.com>:

> Attached are patches to files to add the following functionality to Ansel:
>
> 1) watermark placeholders.  these include the standard strftime()
> placeholders as well as %N => Users Full Name and %L => Users login name.
>
> 2) ability to set the gd font that is used in the custom watermark
> pop-up.  Choices are limited to the 5 builtin fonts for GD (tiny, small,
> medium, large, giant).   It currently only works if you are using GD
> (but then again, watermarks only work if you are using GD...)

Cleaned up a tad and committed - thanks!

-chuck

--
"Regard my poor demoralized mule!" - Juan Valdez