erasure-code: store and compare encoded contents

http://tracker.ceph.com/issues/9420 Refs: #9420

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
erasure-code: s/alignement/alignment/ typos in jerasure

The jerasure-per-chunk-alignment prameter was mispelled and while
useable that would lead to confusion.

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
erasure-code: Makefile.am cosmetics

Cluster benchmark related lines together.

Signed-off-by: Loic Dachary <loic-201408@dachary.org>