Working on initial boundary matchers.
Initial Boundary Matchers working rudimentarily.
Intermediate commit.
Internal/terminal boundaries look like they're working.  In the process of adding/testing semicolons.
Extended MatcherComparator.  Eliminated ambiguity with patterns like |,a|.
Got AtProseMatcher correctly reporting its matcher type and comparing with other AtProseMatchers.
Finally moved around misplaced files. All Prose source should be in the Prose directory now.  Currently at 14625 lines of code in Prose according to GIT.
Merge branch 'feature/special-pattern-symbols' into develop