v21.9.0

Bug Fixes

• add test to dependency check (bf81ee2)
• bump electron to 8.2.2 (cacb7af)
• remove karma junit (9a2ad2c)
• remove unused util (cefd014)

Features

• bump extract-zip to 2.0.0 (b1f80fd)
• bump karma to 5.0.1 (e229a66)
• improve errors and dep check cmd (64f16db), closes #428