Disable update requestHandlers if solr_read_only var is True.
Disable update requestHandlers if solr_read_only var is True.

tingletech/solr_api,mredar/solr_api,tingletech/solr_api,mredar/solr_api,ucldc/solr_api,tingletech/solr_api,ucldc/solr_api,mredar/solr_api,mredar/solr_api,tingletech/solr_api,ucldc/solr_api,mredar/solr_api,ucldc/solr_api,ucldc/solr_api