Fixed issue with translation unit parsing failure on startup when
given a new, nonexistent file path.  Now it fails but retries parsing
with an unsaved file.

Fixed subsequent bug in elisp code where pattern end wasn't matching
because the end of file didn't have newline character.  Now an extra
newline is always added+sent when issuing a reparse request.

Also, commented out debug messages in elisp for now.
Update to instructions and prettification of README