The innoConv runner is the core of the conversion process.
It traverses the source directory recursively and finds all content files. These are converted one-by-one to JSON. Under the hood is uses Pandoc.
It receives a list of extensions that are instantiated and notified upon
certain events. The events are documented in
InnoconvRunner(source_dir, output_dir, manifest, extensions)¶
Convert content files in a directory tree.
Start the conversion by iterating over language folders.