Updates to the paper: transient and follow-up

Paper/paper_cw_mcmc.tex

Paper/transient_search_corner.png

Paper/transient_search_initial_stage_twoFcumulative.png

Paper/weak_signal_follow_up_run_setup.tex

Paper/weak_signal_follow_up_walkers.png

examples/make_fake_data.py

examples/transient_search_using_MCMC.py

examples/weak_signal_follow_up.py

pyfstat.py