anchor.diff:  * Pig maps can have values of different types 
   http://github.com/elastic/elasticsearch-hadoop/issues/777[#777]
   Rest::
  +* Update/Upsert bulk actions with scripts are broken for ES 1.x as of 5.0.0-alpha5
   http://github.com/elastic/elasticsearch-hadoop/issues/817[#817]
   * Shard size estimations for Slice API do not target shards 
   http://github.com/elastic/elasticsearch-hadoop/issues/843[#843]
  
positive.code: http://github.com/elastic/elasticsearch-hadoop/issues/772[#772]
  * Tests fail in build 
  http://github.com/elastic/elasticsearch-hadoop/issues/755[#755]
  
  [float]
  [[nonissue-5.0.0]]
  
negative.code: http://github.com/elastic/elasticsearch-hadoop/issues/793[#793]
  * Parsing error messages can cause a NPE 
  http://github.com/elastic/elasticsearch-hadoop/issues/776[#776]
  * shard preference concatenation with | gives query error
  https://github.com/elastic/elasticsearch-hadoop/issues/874[#874]
  Spark::
  * Dropping a whole column of a DataFrame while indexing the DF into ES 
  http://github.com/elastic/elasticsearch-hadoop/issues/841[#841]
  