v0.1.7

Changelog

• 47cd637 add online tasks repository
• 3647be6 add task repository manifest.json schema
• 91b7ae9 fix a nft issue
• cc3c3b6 improve tasks
• 3288e4f improve tasks feature
• 36ef022 improve ui
• f4526cb support custom tasks
• af89a46 update docs; fix test issue
• 9033b12 update frontend
• 7bb0feb update ui to make it mobile friendly