Fix to service for getting model (model might not be a fully registered one in OSGI)
Fix to functions test, allow metadata to be null as we cannot predict how people would like to use the pipeline.
TESTING: fix testing classpath
Increased pool size in test.
Added clear of ptolemy static data on execution.
Merge branch 'master' of ssh://dascgitolite@dasc-git.diamond.ac.uk/scisoft/scisoft-core.git