Video module
Default video alignment to `none`
Add back commit that keeps package_data in the install
Allow for an optional `html_writer` config item for custom RST
Use dynamic imports to fetch external html_writers
Actually regard "public" flag when building
Improved HTML in rst_display.html
Support for language variable
Merge branch 'language_support' into integrate
merged dbrgn's integrate branch to master
only rst files are allowed in archives, now