Another fix for migration to Tika 1.6.  Remove netcdf jjar, since it's LGPL now and can't be redistributed, and audit all the subdependencies of Tika thoroughly.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/trunk@1629541 13f79535-47bb-0310-9956-ffa450edef68