ACDC Server CouchApp

- Add the necessary dependencies for the acdcserver
service for cmsweb deployment.
- Add two new views to the ACDC couchapp which will allow cleaning operations
  based on request name and document age. Also include a basic rewrite function and
  a validate function which allows editing by the same rules as the ReqMgr couchapp.
- Add a timestamp to all fileset ACDC records.
- Add a script to cleanup the acdcserver in a crontab.
Merge pull request #4587 from dballesteros7/central-acdc

ACDC Server CouchApp