Start of interpretations for appendix.
Make sure patches clear out the layer cache, too
Fix builder test from previous commit
Subheading of appendix for interpretations
Remove 'and's from emphasized amdpar. This text is part of an interp title, so the 'and' doesn't indicate what it would in the rest of the amdpar
Allow appendix citations to include parts, paragraphs
Merge pull request #223 from cmc333333/interp-appendix

Changes to Interpretations for Appendices