added shaded plugin for command line executable jar creation
added shaded plugin for command line executable jar creation

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