SOLR-4799: Fix javadocs generation.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1643351 13f79535-47bb-0310-9956-ffa450edef68
SOLR-3881: Avoid OOMs in LanguageIdentifierUpdateProcessor:
- Added langid.maxFieldValueChars and langid.maxTotalChars params to limit
  input, by default 10k and 20k chars, respectively.
- Moved input concatenation to Tika implementation; the langdetect
  implementation instead appends each input piece via the langdetect API.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1643377 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6560: Purge termIndexInterval from example/test configs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1643381 13f79535-47bb-0310-9956-ffa450edef68