GitLab

workers(nodes) available to Balsam; useful for running benchmarks

* timing capabilities built in to MPIEnsemble runner and MPIRunner
Now successful job runs should have an elapsed runtime in seconds
added to the field runtime_seconds

* Refactored utilites for automated testing and benchmarking

* User explicitly creates balsam DB directory with "balsam init"
* User launches DB server with "balsam dbserver"
* user_settings is vastly simplified...moved all configuration logic
into django_config module
* Database is auto-configured on django startup; will connect to DB
server automatically if client