- Update to version 0.61
po4a tool:
* Robustify --srcdir and --destdir: When building the schroot package,
these paths happen to be soft links to the same directory, making po4a
believe that the POT file is specified twice (to the same value). po4a
is now ignoring these dups.

Translations:
Updated: Chinese, Czech, Dutch, French, German, Portuguese, Portuguese
(Brazil), Serbian and Ukrainian.
- Update to version 0.60
Asciidoc:
* Introduce "compat" option to parse like asciidoc or asciidoctor.
Text (and Markdown):
* Fix the support of nested lists.
Other:
* Remove the experimental C extension that was never built, distributed,
tested nor modified since 2007.

XML:
* Provide a meaningful message when the translators butcher the
attributes instead of truncating the file.

Translations:
Updated: Chinese, Croatian, Dutch, French, German, Norwegian Bokmål, Portuguese
(Brazil), Serbian and Ukrainian.