A wee bit of a cleanup of the API

- Move some method over to defaulted methods
 - Use Objects rather than Preconditions

.editorconfig

@@ -5,9 +5,7 @@ indent_style = space
 indent_size = 4
 end_of_line = lf
 charset = utf-8
-# Sadly too many files have whitespace errors, so we leave this as is for
-# now and just make sure we don't introduce any more.
-# trim_trailing_whitespace = true
+trim_trailing_whitespace = true
 insert_final_newline = true
 
 [*.md]