Lots of comments
Added new c++ and python classes to measure distances in periodic boundary conditions during NEB runs. Added a mindist class for periodic rigid body systems (not yet complete).
New system class for OTP molecules with periodic boundary conditions.
Updated test routine
More updated tests
More updates to test routines, including alignment tests and structure visualisation (ongoing)
More updates to testing and visualisation
Edited testing routines and trying to fix rigid periodic mindist class
Experimenting with periodic get_dist routine
Tidied up testing and mindist classes, checked that they work and removed unnecessary comments
add periodic, frozen, cell lists python test
Merge remote-tracking branch 'origin/master' into hs_wca_examples
extend python test
Tidying periodic_exact_match.py
Merge remote-tracking branch 'origin/master' into hs_wca_examples
Tidy minpermdist_stochastic.py
remove useless import
fix seed in cell list example
fix coordinate value test
test all coodinates irrespective of minimization convergence