Dynamic allocation of NION dimensioned arrays in plasma structure, change by NSH. See #96, closes #93
Added p_norm minimum value for anisotropic scattering
created p_escape_from_tau subroutine
Few more comments
Included fix in later section in trans_phot.c
Removed printf statement
Added logging system for mean intensity issues
Comment modified
Changed reporting
Merge pull request #98 from jhmatthews/inf_aniso_hotfix

Fix for infinite entries in spec files - default p_escape to 1.0 for low and high tau
Modified xdefine_phot so only calculate level emissivities if geo.pcycle is 0
small comment edit
Merge pull request #99 from jhmatthews/dev

Reporting issues from mean_intensity
Changed version to 78a
PI and recomb rate coeff codes split out