Second release - extended capabilities for radiation and neutrals

This release offers additional capabilities, especially for radiation modeling and neutrals. The interfaces to ADAS data now allow simple downloading of atomic data from OPEN-ADAS, but users are always able to overrun the defaults for each file. ADF15-reading methods handle better cases with excitation, recombination and charge exchange components, as well as metastable states. A first interface to SOLPS-ITER output has been added to facilitate analysis that involves impurities, neutrals and radiation at the same time. Methods to analyze spectroscopic experimental signals (e.g. from Ly-a diagnostics) have been added. The code can run across multiple computer mounts and is more easily integrated within wider frameworks.