LIHADOOP-14321: Release Dr. Elephant v1.0.4
LIHADOOP-14321: Release Dr. Elephant v1.0.4

bretlowery/dr-elephant-mapr,shankar37/dr-elephant,qubole/dr-elephant,shankar37/dr-elephant,shankar37/dr-elephant,snithish/dr-elephant,shankar37/dr-elephant,bretlowery/dr-elephant-mapr,snithish/dr-elephant,snithish/dr-elephant,nntnag17/dr-elephant-1,bretlowery/dr-elephant-mapr,qubole/dr-elephant,nntnag17/dr-elephant-1,snithish/dr-elephant,nntnag17/dr-elephant-1,qubole/dr-elephant,qubole/dr-elephant,nntnag17/dr-elephant-1,bretlowery/dr-elephant-mapr