Updated comment in Config constructor to explain reason for exception raising
Moved to EAFP paradigm
Moved to EAFP paradigm in Lattice
Moved Observable to EAFP
Moved Propagator to EAFP paradigm
Updated simulation to bring inline with EAFP paradigm
Moved TwoPoint to EAFP paradigm
Add repr to Observable object
Fixed a couple of bugs in propagator multiply routines
Fixed some bugs in TwoPoint.compute_meson_correlator
Fixed a bug in DataSet._save_datum
Updated the tests to bring them in line with new EAFP paradigm code
Fixed some bugs relating to DataSet measurement arithmetic functions
Added type checking back into add_datum
Added clarification for DataSet.add_datum type checking.
Removed outdated Raise elements from docstrings.