Update Bernstein hash function
Update Bernstein hash function

'hashv << 5 + hashv' will be faster than 'hashv * 33'
cheyiliu/uthash,fw1121/uthash,cheyiliu/uthash,Convey-Compliance/uthash,yxw2014/uthash,iliastsi/uthash,fperrad/uthash,fw1121/uthash,yxw2014/uthash,thiloschulz/uthash,fperrad/uthash,iliastsi/uthash,thiloschulz/uthash,iliastsi/uthash,fw1121/uthash,fperrad/uthash,yxw2014/uthash,iliastsi/uthash,thiloschulz/uthash,Convey-Compliance/uthash,fperrad/uthash,yxw2014/uthash,thiloschulz/uthash,Convey-Compliance/uthash,cheyiliu/uthash,fw1121/uthash,Convey-Compliance/uthash,cheyiliu/uthash