Does add_rn_eig_jump with all_eigs=False work as intended?

[bencebecsy]

It looks like when all_eigs=False, add_rn_eig_jump randomly changes either the gamma or amplitude of each psr's RN:

QuickCW/QuickCW/QuickMTHelpers.py

Line 692 in b565a71

which_eig = np.random.choice(2, size=Npsr)

I think it is intended to pick a pulsar to perturb randomly.

With that said, we may be only using it with all_eigs=True right now.