[ajax] use a custom tag to handle dynamically loaded js
Using <pre class="script"> makes it trivial for a malicious user to
inject arbitrary javascript into a html or rest text element (because it
looks innocent to the html sanitizer). Using a custom tag we can be
sure that it actually comes from our code and not from untrusted user
data. IE ignores custom tags, though, so we put it in its own namespace.
https://extranet.logilab.fr/1530578
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile