update of default pseudopotentials

1. Default pseudopotentail of K, Ca and Cs is K_sv, Ca_sv and Cs_sv_GW respectively. They show better convergence in electronic step.
2. Pr~Lu now uses trivalent pseudopotential which shows more accurate result. If valency is bigger than 3, please use pseudopotential without appendix.

Better algorithm for magnetism

1. Applying ALGO=All in kp & cutoff test. Bad electronic convergence alleviated.
2. Applying modified Ising model.
3. CIF parsing rule is changed to accommodate various formats.

v0.9.1

fixed relaxation behavior of AMP2, which tries one more relaxation

v0.9.0

public