[GH-60] Support fast merge in storage plugin iface. (#61)

[GH-57] Shuffle tool output is not precise (#58)

[GH-55] Improve the unsafe code path performance. (#56)

[GH-53] Batch deploy script. (#54)

[GH-51] Cache shuffle index in memory. (#52)

[GH-49] Shuffle performance tool. (#50)

[GH-43] Structure enhancement of the shuffle reader (#44)

[GH-47] Improve merge sort efficiency. (#48)

[GH-45] Stop shuffle manager raises exception (#46)

[GH-41] Create empty shuffle data file failed (#42)

[GH-39] Do not use `OutputStream.available()`. (#40)

[GH-37] Recuce the number of calls to getSize. (#38)

[GH-35] Print version during shuffle manager init. (#36)

Remove local storage plugin. (#34)

Put shuffle files in separate folder. (#30)