Input format test

I am not really comfortable with the 'Markdown' syntax, so switched from [https://www.drupal.org/project/markdown Markdown filter] to [https://www.drupal.org/project/pearwiki_filter PEAR Wiki filter], which is in a desolate state.

Next attempt to get proper Mediawiki tags with [https://www.drupal.org/project/mediawiki_api MediaWiki API] which is at least still under development, but also not functional. So no Wikipedia-like formatting and back to plain HTML.

@Eko: Next, trying to get at.js to work.

An at.js demo is here: http://ichord.github.io/At.js/

This at.js listener is supposed to be active on entity 'name' (triggered by @):

data-value="${atwho-at}${name}">${name}

Other at.js listeners should be active

* on bundle 'forum topic' and entity property 'title' (triggered by #), and
* on bundle 'image' and entity property 'filename' (triggered by :).

So in therory, the at.js listeners could, for example,

* autocomplete user names (with @);
* autocomplete link titles (with #);
* autocomplete smileys (with :, as shown in the at.js demo);

However, so far it's just theory - that thing does not work at all.

Sandro