Exclude solr from source tar

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/integration/solr-4.x/trunk@1571115 13f79535-47bb-0310-9956-ffa450edef68
Exclude solr from source tar

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/integration/solr-4.x/branches/release-1.2-branch@1571116 13f79535-47bb-0310-9956-ffa450edef68