Architecture change. (new modules structure)
Update templates for new blocks-with-arguments system.
Move client-side scripts into `old` directiry.
Use absolute localization paths in server handlers.
Drop a "priority hack" in `section` handler.

It's a pretty old fix. Just foggot to commit it.
Port "More posts" handler.
Port "More threads" handler.
Correct stylesheets organization.
Style changes in client files. Drop /*global*/ declarations.
Add comments.
Complete reorganization of `common` package.
Update file paths.
Correct style and drop `root` directives in bundle.yml
Reorganize `section` and `thread` blocks.
Refactor "More posts" and "More threads" buttons.
Merge branch 'reorganization'