Upgrade to Tika 1.19.1

   * Require Java 8 (TIKA-2679).

   * Enable building with Java 11 (TIKA-2668)

   * Add an option to make tika-server robust against infinite loops,
     OOMs, and memory leaks (TIKA-2725).

   * Allow configuration of the Tesseract parser via the standard
     tika-config.xml options (TIKA-2705).

   * Improve handling of empty cells across table-based
     formats (TIKA-2479).

   * Add a Standards compliant HTML encoding detector
     via Gerard Bouchar (TIKA-2673).

   * Improved XML parsing -- limited default entity expansions to 20.
     To raise this limit, add -Djdk.xml.entityExpansionLimit=XXX to
     your commandline.

   * Mime magic improvements for Olympus RAW (TIKA-2658), interpreted
     server-side languages via HTTP (TIKA-2648), MHTML (TIKA-2723)

   * Add absolute timeout to ForkParser rather than testing
     for active (TIKA-2656).

   * Make the RecursiveParserWrapper work with the ForkParser (TIKA-2655).

   * Allow the ForkParser to specify a directory containing tika-app.jar
     for use by the ForkServer.  This allows users to keep most of the
     parser dependencies out of their code; and it allows for an easy
     addition of optional jars for Parser dependencies,
     such as the xerial sqlite jar (TIKA-2653).

   * Use a pool for SAXParsers and DOMBuilders rather than creating
     a new parser/builder for every parse.
     For better performance, set XMLReaderUtils.setPoolSize() to the
     number of threads you're using with Tika (TIKA-2645).

   * Add the RecursiveParserWrapperHandler to improve the RecursiveParserWrapper
     API slightly (TIKA-2644).

   * Upgraded to Commons-Compress 1.18 (TIKA-2707).

   * Upgraded to Apache POI 4.0.0 (TIKA-2552).

   * Upgraded to Apache PDFBox 2.0.11 (TIKA-2681).

   * Upgraded to deeplearning4j 1.0.0-beta2 (TIKA-2672).

   * Upgraded jmatio to 1.4 (TIKA-2667)

   * Upgraded Apache Lucene to 7.4.0 in tika-eval and tika-examples (TIKA-2695).

   * Upgraded junrar to 1.0.1 (TIKA-2664).

   * Numerous other upgrades (TIKA-2692).

   * Excluded Spring as a transitive dependency (TIKA-2721).