Watermark module should support multiple watermarks

[jstricker]

I've implemented a form of this for thumbnails and resized images; please see the attached files.

If anyone drops these files into an existing Gallery3 Alpha4 installation, it's important to remove your old watermark first. If not, you'll have orphaned entries in your vars table.

Also, please note that the implementation I've provided requires the changes I proposed in ticket 269.

[bharat]

Would you please attach your changes as a diff instead of a zip file? That'd make it much easier for us to understand what you've changed. thanks.

[jstricker]

Changes to modules\watermark\views\admin_watermarks.html.php

[jstricker]

Changes to modules\watermark\controllers\admin_watermarks.php

[jstricker]

Changes to modules\watermark\helpers\watermark.php