Snapshot of incomplete work on IDML converter. We start with ICML instead.
Added ICML converter (WIP)
While in development use our patched fork of kramdown
Kramdown proper now implements {::} nullop IALs, so we don't need the patch any more.
Update specs to work with kramdown's new location information.
Update Kramdown::Element#inspect_tree method to handle more cases.
Added ICML converter