SQOOP-1610: Update change log with 1.99.4 release

(Gwen Shapira via Jarek Jarcec Cecho)
SQOOP-1611: Update POM version on new 1.99.4 branch

(Gwen Shapira via Jarek Jarcec Cecho)
SQOOP-1694: Sqoop2: Fix broken Hadoop100 build

(Gwen Shapira via Jarek Jarcec Cecho)
SQOOP-1697: Sqoop2: HDFS Connector TestLoader.verifyOutput have invalid default value for Hadoop 1

(Jarek Jarcec Cecho via Abraham Elmahrek)
SQOOP-1664: Sqoop2: Remove the unused SqoopFileOutputFormat class

(Veena Basavaraj via Jarek Jarcec Cecho)
SQOOP-1696: Sqoop2: TestMapReduce.testOutputFormat is failing on Hadoop 1 profile

(Jarek Jarcec Cecho via Abraham Elmahrek)