added a script to shuffle coordinates in the test cases
MMM1D: cleanup and coordinate shuffling
print rms errors in energies and forces too
Merge branch 'master' of https://github.com/scafacos/scafacos
Merge branch 'master' into p2nfft_speedup_1dp
simplify error bounds in evaluation of incomplete Bessel function
P2NFFT: profile 1dp regularization