Fixes to isPubliclyRoutable() based on IPv6 config

...console/java/src/net/i2p/router/web/ConfigNetHandler.java

...terconsole/java/src/net/i2p/router/web/SummaryHelper.java

router/java/src/net/i2p/router/RouterVersion.java

router/java/src/net/i2p/router/transport/TransportImpl.java

router/java/src/net/i2p/router/transport/TransportUtil.java

router/java/src/net/i2p/router/transport/UPnP.java

router/java/src/net/i2p/router/transport/UPnPManager.java

...r/java/src/net/i2p/router/transport/ntcp/NTCPAddress.java