added hiredis-lib to travis.yml
added hiredis-lib to travis.yml

openSNP/snpr,gedankenstuecke/snpr,vivekiitkgp/snpr,gedankenstuecke/snpr,gedankenstuecke/snpr,philippbayer/snpr,openSNP/snpr,vivekiitkgp/snpr,openSNP/snpr,vivekiitkgp/snpr,philippbayer/snpr,openSNP/snpr,vivekiitkgp/snpr,gedankenstuecke/snpr,philippbayer/snpr,philippbayer/snpr