v0.9.4

Add Hopf bifurcation classifier, improve limit cycle detector, polish GUI

• Add analytical Jacobian
• Add Hopf classification using first Lyapunov coefficient
• Improve limit cycle robustness around Hopf bifurcations
• Polish main window

v0.9.3

Add limit cycle detector and math inspector

• Add math inspector window
• Add LaTeX rendering
• Add neuron presets
• Fix various bugs