Fix for generating stats to work when there are are no services. Added delayed_job confing file as we should be using script/delayed_job instead of script/worker.
Merge branch 'rails3' of github.com:myGrid/biocatalogue into rails3

# By Aleksandra Nenadic
# Via Aleksandra Nenadic
* 'rails3' of github.com:myGrid/biocatalogue:
  Fix for generating stats to work when there are are no services. Added delayed_job confing file as we should be using script/delayed_job instead of script/worker.