add models directory and support code
add job table with basic data
enable logging for testing
add sqlalchemy session to celery app
save lsf job id in celery submit worker
check response code of initial submit
optionally set queue for testing
wait longer for output file

NFS might be slow.
remove test file manually
print more debugging information
use given network temp environment for testing
automatically delete working directory
recursively remove working directory
check for null rather than false
Merge pull request #16 from mark-burnett/relational-db

Add Relational DB Backend (#8)