0.8.8.3

• Allow user can add external plugin settings via dict.
• Added check summernote language is not en-US when adding i18n script #236 (#237)
• Fix the type of help_text in migration 0002 (#229)
• Rename static directory (#241)
• Form assets media as a dynamic property (#239)
• Add some missing commas for SUMMERNOTE_CONFIG in README (#243)

Thank you all, pals!