Added a list of input files to transfer for sites where the jobs don't execute
in the directory from which they are submitted.
Gets the run list from the database instead of trying to list the directory
contents, and automatically uses xrootd to access files when running at a
remote site.
Store the list of files for a dataset in the database.
Use re.sub instead of rstrip.

Be careful with rstrip. It will remove all characters matching those in the
given string, regardless of order. For example, if x = "temp.py", then
x.rstrip(".py") would be "tem".
Merge branch 'master' of https://github.com/OSU-CMS/OSUT3Analysis