Security checks
---------------
-- `refreshpofiles` uses `system()`, whose args have to be checked more
- thoroughly to prevent any security issue (command injection, etc.).
- > Always pass `system()` a list of parameters to avoid the shell.
- > I've checked in a change fixing that. --[[Joey]]
- Can any sort of directives be put in po files that will
cause mischief (ie, include other files, run commands, crash gettext,
whatever).
[[bugs/pagetitle_function_does_not_respect_meta_titles]], which might
be fixed by something like [[todo/using_meta_titles_for_parentlinks]].
-### backlinks
-
-`po_link_to = negotiated`: if a given translatable `sourcepage.mdwn`
-links to \[[destpage]], `sourcepage.LL.po` also link to \[[destpage]],
-and the latter has the master page *and* all its translations listed
-in the backlinks.
-
-`po_link_to = current`: seems to work nicely
-
-### parentlinks
-
-When `usedirs` is disabled and the home page is translatable, the
-parent link to the wiki home page is broken (`/index.html`).
-
Translation quality assurance
-----------------------------