Merge pull request #39 from projectblacklight/solr_7

Update to use Solr 7

Author: jcoyne

.solr_wrapper.yml

@@ -1,6 +1,5 @@
 # Place any default configuration for solr_wrapper here
 # port: 8983
-version: 6.6.0
 collection:
   dir: solr_conf/conf/
   name: blacklight-core

solr_conf/conf/schema.xml

@@ -337,9 +337,6 @@
  <!-- field for the QueryParser to use when an explicit fieldname is absent -->
  <!--  <defaultSearchField>text</defaultSearchField> -->
 
- <!-- SolrQueryParser configuration: defaultOperator="AND|OR" -->
- <solrQueryParser defaultOperator="OR"/>
-
   <!-- copyField commands copy one field to another at the time a document
         is added to the index.  It's used either to index the same field differently,
         or to add multiple fields to the same field for easier/faster searching.  -->