Add CoffeeScript linting

Simple enough, given the pre-built CofeeLint npm module:

  http://www.coffeelint.org/

Change-Id: I7e685fbf7fa3a4a2112a94053767e93f0896de0d
Reviewed-on: https://gerrit.causes.com/23264
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>
Reviewed-by: Shane da Silva <shane@causes.com>
Add Python linting via `flake8`

Both syntax and style checking, rolled up into one nice package.

Change-Id: Iab4a02cb4f7e764aa9ea85d31614c46584817108
Reviewed-on: https://gerrit.causes.com/23265
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>