Deprecate use of $.ajaxSettings.traditional as $.param default

[dmethvin]

Currently $.param(array, traditional) will fill in its traditional argument using $.ajaxSettings.traditional if it is undefined. This creates a dependency on the full ajax stack that is unnecessary. As of 1.9, if you want the traditional behavior you must explicitly pass true as the second argument.

This has no effect on $.ajax() usage since it passes the traditional parameter explicitly.