apache-spark15 1.5.2 (new formula)
apache-spark15 1.5.2 (new formula)

Closes #1157.

Signed-off-by: Mike McQuaid <a17fed27eaa842282862ff7c1b9c8395a26ac320@mikemcquaid.com>

DomT4/homebrew-versions,coeligena/homebrew-verscustomized,Ashton-W/homebrew-versions,UniqMartin/homebrew-versions,heuermh/homebrew-versions