return and display the energy in (km/s)^2, part of #160
return and display the vertical and radial energies in (km/s)^2, part of #160
fix plotting of the energy with an alternative potential
return and plot the Jacobi integral in physical coordinates if necessary, part of #160
doc clarification for EzJz and warning update
conversions for action angle coordinates in Orbit, part of #160
new plotting test for orbits
tweak
some tests related to #160, fix angular momentum conversion
further tests of conversions for actions, frequencies, and periods; fix frequency conversion, #160
better handling of use_physical in derived functions, #160
better documentation of Orbit initialization, #160, #157
method turn_physical_off, #160, #157
specify that coordinate-transformation parameters are stored, ##158
add turn_physical_off and test it, #160, #157
further orbit documentation, #160, #157
change version in sphinx docs
link to orbit initialization section in API
fix calling qdf with just an orbit
start on routine for fitting an orbit to data, #165