Add glyphs/taylor_server.py example
Introduce Widget base class
Use Widget instead of Plot in notebook_sessions.py
Add support for Slider.step in JS
Update taylor_server.py example
PlotObject.on_change() can also use functions as handlers
Force save Slider's value
Use polling in taylor_server.py example to get Slider's value updates
Force save of TextInput's value
Allow to select an expression in taylor_server.py example
Add Dialog widet
Add error handling to taylor_server.py example