rDNA (http://www.philipleifeld.de)

Version history:

1.2 (2011-03-18)
* New method: dna.categories().
* Added invert.persons, invert.organizations, 
  invert.categories and verbose arguments to 
  dna.network() and dna.timeseries().
* Fixed separate.actors argument in the timeseries 
  method.
* Works with DNA 1.25.

1.1 (2010-11-23)
* New methods: dna.timeseries() and dna.density().
* Fixed dna.network examples.
* Works with DNA 1.24.

1.0 (2010-11-17)
* First release. Includes dna.init(), dna.network(), 
  dna.attributes() and dna.gui(). DNA 1.23.
