Upgrade to Tika 1.12

  * Slide notes are now linked to the slide XHTML in the PPT output
    (TIKA-1840).

  * JSON tests in Tika server were updated to remove impossible casts
    (Github-73).

  * Fix bug in GeoTopicParser where NER is reused instead of instantiated
    with each request (TIKA-1834).

  * Upgrade rome to 1.5.1 && Downgrade Rome dependency to 0.9 to avoid 
    nasty NPE (TIKA-1820, TIKA-1516)

  * The NamedEntityParser was enhanced to generate text content
    in addition to metadata (TIKA-1815, TIKA-1816).

  * A significant speed-up is made to the GeoTopicParser by
    using the new REST server capabilities from Lucene Geo
    Gazetteer (TIKA-1803).

  * A parser to compute motion properties in Videos, e.g., 
    Histogram of Oriented Gradients and Histogram of Optical Flows
    using the Pooled Time Series algorithm, was added (TIKA-1798).

  * Provide NamedEntityParser which exposes Named Entity Recognition
    from OpenNLP and Stanford NER providers (TIKA-1787, GitHub-61,
    GitHub-62).

  * Allow XHTMLContentHandler to pass attributes of html element 
    via Markus Jelsma (TIKA-1782).

  * Fix regression with spacing in PPT via Andreas Beeker (TIKA-1777).

  * Tika Facade parse methods for Path and File added which take a
    Metadata object, to mirror the existing InputStream one (GitHub-60)

  * GeoParser fix for loading the NER model from a jar file (TIKA-1791)