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.
Changed the filenames of zipped files and fixed the timestamp to say year-month-day rather than year-minute-day
Added some extra fields to each CSV export table
Check that rest endpoint is accessible online
html_safe for REST endpoint name.
Merge branch 'rails3' of github.com:myGrid/biocatalogue into rails3
html_safe fix for tags and searches tabs on stats page.
Merge branch 'biocat-rails3' into biovel-rails3