renamed IPL to BM
fixed comment
modified Lennard-Jones model added
loading of Parker's limiting value added
more precision
removed raw rate functions
removed raw integral rates
removed raw_rot_rel_time_def
removed raw_dE_rot_c_dE_rot_d, raw_dE_rot_dE_rot_full, some internal renamings, prob_model parameter added
removed raw_vv_collisions
minor comment fix
removed default delta value of -1
split raw vt, vv and elastic integrals
minor fix