Jakob Frank

1. I've changed the constructor of the SNORQL editor to accept configuration parameters such as the SPARQL endpoint. 2. I also create a pom.xml generating a webjar (to be included...

Expose Optimistic Concurrency for Indexing and Updating operations. It should be sufficient to add the `version` to the Document-model. see also http://yonik.com/solr/optimistic-concurrency/

In [sorllib](https://github.com/redlink-gmbh/solrlib) we're using [solr-maven-plugin](https://github.com/BorisNaguet/solr-maven-plugin) to launch & shutdown a solr-cloud for tests. This would allow to test vind with a solr-cloud backend.