[ajax] improve backward compatibility for redefined ajax functions (closes #2447189)
If an ajax function from stdlib (e.g. js_reledit_form) was redefined in a cube,
the cube version should still takes the precedence<
=> check for existing ajax function on deprecated controller _before_ checking
ajax function availability on the new one.
.. role:: raw-html(raw)
:format: html
RSS driven
----------
RSS is a pretty useful technology that can be widely used on this
site. Any set of data can be presented as RSS. You can then plug in
an RSS reader into that and follow the site activity. For example :
:raw-html:`<p><a class="reference"
href="view?vid=rss&rql=Any+X%2CM+WHERE+X+modification_date+M+ORDERBY+M+DESC+LIMIT+30"><img
alt="rss" src="data/rss.png"> latest changes</a></p>`