Code changes:
 - Phonemetadata.java has two more fields to represent possible lengths of phone
   numbers. Changed BuildMetadataFromXml (and the resultant jar) to alter the way
   that metadata about possible-lengths information is consumed when constructing
   metadata to populate these.
   Discussion list email:
   https://groups.google.com/forum/#!topic/libphonenumber-discuss/75TOpTFVi08
Metadata changes:
 - Metadata fixes for BY, KR, NA