tardis/base.py: Remove duplicate code from run_tardis
tardis/base.py: Remove duplicate code from run_tardis

Instead of yaml.load-ing the configuration file (when the parameter is a filename) in the run_tardis function, use config_reader.Configuration.from_yaml, which does exactly that.

orbitfold/tardis,kaushik94/tardis,Tobychev/tardis,kaushik94/tardis,kaushik94/tardis,orbitfold/tardis,Tobychev/tardis,kaushik94/tardis,orbitfold/tardis,orbitfold/tardis,Tobychev/tardis