LUCENE-5089: Update to Morfologik 1.6.0 (Backport from trunk)
SOLR-5126: Update to Morfologik 1.7.1.
SOLR-5126: Update to Carrot2 1.8.0.



git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1512208 13f79535-47bb-0310-9956-ffa450edef68