Feature/mongo 2.6.5 jshint tests

Fix JSHint issues with new pipeline test code that was (mostly) ported from the original 2.6.5 mongo code.
Part of an effort to cleanup various JSHint issues in one fell swoop so that we can keep things a bit cleaner going forward.

Just trying to fix the line because it was too long and I found it hard to read and understand.
Seemed like splitting it into multiple, more granular steps was the way to go and should help debuggability if anything.
Also, changed `.serialize("zoot")` to `.serialize(false)` because it takes a Boolean