Change gem name from solr to solrb, based on personal preference.  Open to discussion on this.
Change gem name from solr to solrb, based on personal preference.  Open to discussion on this.

git-svn-id: 9c10db2ffc3a5912653d34876e3a537be687889a@495828 13f79535-47bb-0310-9956-ffa450edef68

apache/solr,apache/solr,apache/solr,apache/solr,apache/solr