v 0.1.0, July 19, 2019 -- Initial development release.
v 0.2.0, July 29, 2019 -- Changed syntax for accessing free parameter values, setting free parameters and setting which parameters are trainable. Free parameters values are now accessed using dot syntax and the trainability of a parameter is set using the new method `trainable` (`freeze` and `thaw` have been removed). The valid fit modes are now `cold` and `hot`. Cold uses a random initialization for trainable parameters while hot initializes trainable parameters at their current values.
v 0.2.1, July 29, 2019 -- Patch for evaluation method. Will now return inf instead of nan.