updated mapping for mrs index - added Indentifiers
updated mapping for mrs index - added Indentifiers

svebk/dig-elasticsearch,usc-isi-i2/dig-elasticsearch,chrismattmann/dig-elasticsearch,chrismattmann/dig-elasticsearch,usc-isi-i2/dig-elasticsearch,usc-isi-i2/dig-elasticsearch,svebk/dig-elasticsearch,svebk/dig-elasticsearch,chrismattmann/dig-elasticsearch