Update to Apache Tika 2.4.0, fix #965
Update to Apache Tika 2.4.0, fix #965

Signed-off-by: Julien Nioche <5c682c2d1ec4073e277f9ba9f4bdf07e5794dabe@digitalpebble.com>

DigitalPebble/storm-crawler,DigitalPebble/storm-crawler