openbandparams-0.9

Changes in 0.9:

• added dielectric and dielectric_high_frequency parameters
• added meff_e_L_DOS and meff_e_X_DOS parameters
• improved error messages
• fixed MethodParameter.get_references endless loop
• fixed nonparabolicity parameter (temperature dependence was wrong)
• fixed luttinger32 parameter
• fixed lattice matching of type 3 quaternatries