Many tweaks

New Features

• the Confluence upload now does a configuration check to break early.
• the "Edit on GitHub" feature is now expanded to support any other tool.
• Allow to specify a custom themes directory, other than "themes"
• Allow custom configuration and custom Processors in daux CLI

Updates

• Updated to CommonMark 0.15, fixes a problem with list indentation
• Update highlight.js to 9.7.0, add all possible languages

Fixes

• Handle links with an anchor
• Fix TOC generation