Deprecate $.get and $.post

[joern]

$.get and $.post are currently degenerated versions of $.ajax. The only thing that is useful about them is the conversion of data objects into string form. This could and should be handled by $.ajax, therefore there is hardly anymore use for $.get/$.post. "GET" is the default method for $.ajax anyway.

[joern]

$.get and $.post are still useful for convenience: They provide a "typed" interfaces (no key/value object). But their inner logic can be completely moved to $.ajax: Both converting of data parameter and handling the response.