v0.6.0

In this release some bugs due to Diaspora changes where adressed, it also
contains some new functionality. Also if BeautifulSoup4 is installed it
will use it instead of the regex solution where possible. Also some manual
adjustments.

IMPORTANT: python-dateutil is a requirement now.

Note: In this version indentation changed from spaces to tabs.

See Changelog.markdown for more info on changes.