Escape tag name in javadoc

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626231 13f79535-47bb-0310-9956-ffa450edef68
Merged revision(s) 1626232 from lucene/dev/trunk:
Fix broken Javascript making jtidy fail.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626233 13f79535-47bb-0310-9956-ffa450edef68
Merged revision(s) 1626237 from lucene/dev/trunk:
Add missing package.html description

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626238 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5963: more efficient AnalyzingSuggester.replaceSep

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626242 13f79535-47bb-0310-9956-ffa450edef68