Use stable apache urls in spark elements
Use stable apache urls in spark elements

Closes bug #1324590

Change-Id: I256cd476cd69e8b088620c6400ddbe51f0959a78

openstack/sahara-image-elements,openstack/sahara-image-elements,bigfootproject/sahara-image-elements,uladz/sahara-image-elements,bigfootproject/sahara-image-elements,uladz/sahara-image-elements,crobby/sahara-image-elements,crobby/sahara-image-elements