BREAKDOWN OF HADOOP-11264 SUBTASKS AND RELATED JIRAS (Common part of HDFS-7285)

    HADOOP-11514. Raw Erasure Coder API for concrete encoding and decoding
    (Kai Zheng via umamahesh)

    HADOOP-11534. Minor improvements for raw erasure coders
    ( Kai Zheng via vinayakumarb )

    HADOOP-11541. Raw XOR coder
    ( Kai Zheng )

    HADOOP-11542. Raw Reed-Solomon coder in pure Java. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11643. Define EC schema API for ErasureCodec. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11646. Erasure Coder API for encoding and decoding of block group
    ( Kai Zheng via vinayakumarb )