updated readthedocs configuration updates to ODESystem.extract and the plotting functions that use it: Users can now flexibly switch between using the parameter/variable indices when specifying the variables to plot, or whether they want to use the pyrates-style naming scheme added option to ODESystem.run to store only the minimum and maximum of each selected state variable for periodic solutions (set keyword argument reduce_limit_cycle=True) debugged scenario where initial condition was run, but not explicitly labeled, which caused issues with extracting starting points from the solution branch debugged issue with selecting specific variables and parameters that should be saved in the continuation summary added private method ODESystem._map_var that ensures stable mapping between user-provided variable names and intrinsic variable names