Util: Speed up IP address validation by using Apache's implementation (ticket #1198)

core/java/src/net/i2p/util/Addresses.java

history.txt

router/java/src/net/i2p/data/router/RouterAddress.java

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

router/java/src/net/i2p/router/transport/udp/UDPAddress.java