doc tweak [ci skip]
start on tests of evolveddiskdf
rm sample option
fix for deriv in hierarchical grid
further tests of the various options to calculate mean velocities
add LinShuReductionFactor
start adding more functions to SteadyLogSpiral for use in linear response calculations
tests of LinShuReductionFactor
use a mildly non-axisymmetric potential for the evolveddiskdf tests
tests of the second moments of evolveddiskdf
run evolveddiskdf tests separately
tests of evolveddiskdf's Oort functions and a minor fix related to the new Orbit implementation of vxvv
speed up evolveddiskdf tests by lowering the number of gridpoints
fix numpy namespace bug
do not cover print_progress
a test with a list of times
test with list of times with only one time, test with list of times in oort function
test after removing the _estimateX functions of the initial DF
test that direct vmomentsurfacemass does not work
more tests of special cases of vmomentsurfacemass