Topic: SMARAGD 0.8s

Major revision!
(committed to software development repository on Sep 5, 2010 but posted only now.)

many internal changes, reorganization, and cleanup
some bugfixes

new routine for Coulomb wavefunctions + additional option for testing
new routine for calculation of radial wavefunctions and transmission coefficients
new routine for equivalent square well transmission coefficients

additional choices for optical potentials and density distributions

better initialization and improved error handling