v1.2.0

Major changes:

• if the primary star and secondary star have equally good orbital coverage, now both stars' orbital elements may be solved for at once using the parameter star = "both".
• if the user thinks the orbit is circular, they can use the parameter zeroEcc = True, which holds eccentricity and argument of periastron at 0.

Minor changes:

• fixed a bug that sometimes made the RV curve jagged for the phase plots
• fixed a bug with the returned uncertainty for the argument of periastron for the star = "secondary" application.

v1.1.1

Fixed bug in phase plots where average radial velocity wasn't being spaced linearly.

Added back in print statements to indicate which stage of the process is being implemented.