Port changes to config files from Apache Solr module

There have been many changes to the config files in the Apache Solr Search Integration module. These need to be incorporated in this module.

• #528086: html entities are not properly handled on search/display
• #1088208: Simplfy schema.xml to use more dynamic fields
• #1090530: Further schema-related code fixes
• #1097988: Conf fixups including Avoiding warning "No queryConverter defined, using default converter"
• #1098222: Make the nodeaccess module more generic
• #1108618: Should numeric fields in 7.x use a sortable data type by default?
• #1114798: Examine Solr 3.1 example schema and solrconfig for ideas