Save the soft Higgs masses before we calculate the tree-level
spectrum
Ensure that the tree-level EWSB eqs. are fulfilled before we calculate
the tree-level masses.  To ensure them, we adjust the soft Higgs
masses.  This should be equivalent to Softsusy.
Check for finitie value instead of for Nan only.
Since we now have tree-level EWSB ensured if we calculate the tree-level
spectrum, we don't need the goldstone boson hack anymore.
Increase the test precision.  We are now much closer to Softsusy's
tree-level and one-loop masses.
Avoid calculating MX with non-perturbative gauge couplings.
Chose a default E6SSM parameter point which has no tachyons.