Clarify distinctions between the two javascript ports (#1846)

README.md

@@ -174,8 +174,9 @@ maintenance processes.
 *   Javascript: If you don't want to use our version, which depends on Closure,
     there are several other options, including
     https://github.com/halt-hammerzeit/libphonenumber-js (a stripped-down
-    version) and https://github.com/seegno/google-libphonenumber (installable
-    via npm, a browserify-compatible wrapper)
+    rewrite, about 110 KB in size) and https://github.com/seegno/google-libphonenumber
+    (a browserify-compatible wrapper around the original unmodified library 
+    installable via npm, packs Google Closure library, about 420 KB in size)
 *   Objective-c: https://github.com/iziz/libPhoneNumber-iOS
 *   PHP: https://github.com/giggsey/libphonenumber-for-php
 *   PostgreSQL in-database types: https://github.com/blm768/pg-libphonenumber