1.2.2

1.2.2 (2021-01-14)

Merged pull requests:

• Apply missing ensure_async to root session handler methods #386 (kevin-bates)
• Update changelog to 1.2.1 #385 (Zsailer)
• Fix application exit #384 (afshin)
• Replace secure_write, is_hidden, exists with jupyter_core's #382 (kevin-bates)
• Add --autoreload flag #380 (afshin)