tag: use assert_equal instead of assert with ==

Closes #29536.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
tpp: use assert_equal instead of assert with ==

Closes #29537.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
apache-spark 0.9.1: New formula

Apache Spark is a fast and general engine for large-scale data
processing.
apache-spark: add 0.9.1 bottle.