See RNN v1.13

FEATURES:

• Added get_weight_penalties, weight_loss to inspect_gen
• Added as_tensors kwarg to get_weights
• Added share_xy, center_zero kwargs to features_hist and features_hist_v2
• Deprecated equate_axes in visuals_gen in favor of share_xy, directly setting sharex and sharey
• Improved detect_nans performance

BREAKING:

• _detect_nans -> detect_nans (made public)

MISC:

• Added keys check to configs, ensuring keys serve functionality (e.g. 'subplots' does nothing; 'subplot' is correct)
• Improved get_gradients docstring
• Changed get_gradients arg ordering
• Updated README to account for changes