1. Upgrade Tika depencency (tika-core) in ivy/ivy.xml

2. Upgrade Tika dependency in src/plugin/parse-tika/ivy.xml

3. Upgrade Tika's own dependencies in src/plugin/parse-tika/plugin.xml

   To get the list of dependencies and their versions execute:
    $ cd src/plugin/parse-tika/
    $ ant -f ./build-ivy.xml
    $ ls lib | sed 's/^/      <library name="/g' | sed 's/$/"\/>/g'

   In the plugin.xml replace all lines between
      <!-- dependencies of Tika (tika-parsers) -->
   and
      <!-- end of dependencies of Tika (tika-parsers) -->
   with the output of the command above.