dM_RLOF_LOSE
dM_wind
dM_orbit

remove tm and tn from common
remove other pointers from common (which just pointed to preferences anyway)

call to prevent_overspin (there were issues in 
stellar mergers)


removed GB, tscls, lums from common->

the AGB (or SAGB) properly

combined the orbital angmom/eccentricity routines
more timestepping updates

detached systems:
moved the calculation of dM_in_timestep to the apply_derviatves function
changed the limit_timestep function so it doesn't require dM_in_timestep
replaced kmax loop

add dynamical timescale routine for the envelope and better
structure what we used previously.

limit wind loss rates to the dynamical timescale of the star

lots more cleanup besides

more testing (rgi)

converted dms, which was used for two purposes, to two variables:
dM_in_orbit
dM_in_timestep

which are the changes to the mass in an orbit, and in a timestep