Refactor Template parsing as a type of Route/Response mechanism, so embedding routes becomes defacto instead of backup

[brendanmetzger]

Determine if static GET is worth using on request class or if there is a more useful way to configure responses

[brendanmetzger]

When working, consider the value of processing instructions, possibility of caching, etc.

[brendanmetzger]

• [ ] Trying to xpath unrendered markdown during insert shortcomings
• [x] setting the root to a custom element before markdown parse