Escape tag name in javadoc

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626227 13f79535-47bb-0310-9956-ffa450edef68
Fix broken Javascript making jtidy fail.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626232 13f79535-47bb-0310-9956-ffa450edef68
Add missing package.html description

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626237 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5963: more efficient AnalyzingSuggester.replaceSep

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1626241 13f79535-47bb-0310-9956-ffa450edef68