Maven: Change next expected version to 6.2.2, not 6.3

git-svn-id: http://libphonenumber.googlecode.com/svn@689 ee073f10-1060-11df-b6a4-87a95322a99c
Maven: Change next expected version for demo to 6.2.2, not 6.3

git-svn-id: http://libphonenumber.googlecode.com/svn@690 ee073f10-1060-11df-b6a4-87a95322a99c