External vocabularies
serverside code
add option to add external read-only providers
block add, edit, delete for external providers
refs #96
show only internal conceptschemes
refs #96
split internal and external schemes
refs #96
import form first draft
refs #96
conceptschemes list to pyramid_skosprovider
refs #105
update requirements
Upgrade to skosprovider_rdf 0.3.0
refs #103
Status code for external providers
refs #104
fix matches in from thing
refs  #102
update util tests for matches
refs #102
Merge remote-tracking branch 'remotes/origin/0.4.0' into External_vocabularies
Merge pull request #107 from OnroerendErfgoed/External_vocabularies

merge branches