Do not allow keyterms to also be definitions
Terms layer now ignores newline characters when verifying scope. Also lessens possibility of problems with subparts
Merge pull request #173 from cmc333333/def-keyterm

Do not allow keyterms to also be definitions
Merge pull request #174 from cmc333333/subpart-scope-missing

Fix incorrect scope issue
Allow interps to contain headers that don't reference anything
Merge pull request #175 from cmc333333/interp-intro

Allow interps to contain headers that don't reference anything
Merge branch 'master' of github.com:cfpb/regulations-parser into regulation_compilation
Fixed tests
Handle multiple changes to a node
Find lost XML sections; remove false deletes