Fix small bugs

Fix bug in example tests

Update version number

Merge branch 'master' of https://github.com/molmod/QuickFF

Added forgotten scripts.py file

Fix small bug with plot_traj feature

Bends of 180 are now linear in cosine, cleaner code

Small change in guess_ffatypes high level

Fix bug in perturbation.strain and add small random noise to initial …

…guess of perturbation trajectories

Fix bug when reading charge radii