Remove CTE parser revamp from master; this will go on a new branch.

This reverts commit 6f91b6f64c2d1de42d51797c8ba0d4ab27042118.
Revert "INCOMPLETE overhaul to CTE parsing core, issue #6"

This reverts commit c9f61c7056e267a816de9377efeee8b538b5c3d8.
Merge branch 'master' of https://github.com/tla/stemmatology