Remove Windows double backslash paths

This made the rspec tests pass on my Windows machine.

Change-Id: Iafda00929a988934c280a8b89cbe6ef70f531c55
Reviewed-on: http://gerrit.causes.com/43691
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>