Add Google Analytics support to Site Settings. The reason I created additional SettingsValidationForm is because you cannot inherit from Form that has already defined Meta class, so it's sort of workaround for that. I didn't want to have same validation functions in both Form classes.
Patch by: Pawel Solyga
Review by: to-be-reviewed
{% comment %}
Licensed under the Apache License, Version 2.0 (the "License");
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{% endcomment %}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<head>
<title>500 Server Error</title>
</head>
<body><h1>500 Server Error</h1></body>
</html>