1.0.2: Auto-updating

New feature:

• Realize auto-updating
• Add automatic building mechanism for develop package

1.0.1: Remove attachDropdown icon

Merge branch 'develop'

1.0: The first full-featured and stable version

Basic:

• rich text editing
• note and notebook classification
• tagging

Advanced:

• multimedia
• drag & drop
• cloud storage
• audio and video recording
• share
• online synchronized and offline used
• cross-platform