Plugin Version

Added a jquery plugin version. Allows people to trigger Purplecoat when
they want to, not just on click.

Usage:

Adds Purple Coat to every img tag.
$(“img”).purplecoat();

Adds Purple Coat to every img tag with options.
$(“img”).purplecoat({
      color: "#EF0038",
      label: "PurpleCoat",
      hide: false
});

Hides Purplecoat over every img tag.
$(“img”).purplecoat(true);