Fixing issues with coprocessing.py.

Some parts of the script weren't getting tested (need to fix that
soon) and needed to be fixed to properly import modules. I also
fixed warnings that were generated when UpdatePipeline() wasn't
getting called with a time argument.

Change-Id: I339f7c392d7f5d34c6e531fe06b8cd65010f843c
Merge topic '14101_fix_coprocessing_py' into next

617e91e Fixing issues with coprocessing.py.