Fixed externe_dokuments.tests.
Added ch.elexis.omnivore as found in elexis 2.1.7
Called elexis_2_to_3.rb for ch.elexis.omnivore
Manual changes for omnivore
Added omnivore and missing source features in category.xml
Merge pull request #9 from ngiger/externe_dokumente

Fixed externe_dokuments.tests.
Merge pull request #10 from ngiger/omnivore

Omnivore
Omnivore build fix for extension point ServiceRegistry