When the orbital frequency is negative due to numerical errors in Hamiltonian derivative (dH/dpp) approaching horizon, set omega to 1e-9. Add warning message for high starting frequency, recommed in the message to start at radius > 10M. When default step back time is longer than evolution time, change the former to half of the latter.
Add references of expressions from dcc document T1400476-v3
Add references of expressions from dcc document T1400476-v3
Merge branch 'master' of ligo-vcs.phys.uwm.edu:/usr/local/git/lalsuite