CRIT [ Establisher] ter.transport.udp.UDPTransport: IP changed

[anonymous maybe]

if u enable " Laptop mode - Change router identity and UDP port when IP changes for enhanced anonymity (Experimental)" inside network, it should be something normal that the user aware of it. so it should show the message without something CRIT.

so that the user will not confuse and/or think something damaged or wrong happened.

• I2P Version and Running Environment

 I2P version:	0.9.31-0-1ubuntu1
Java version:	Oracle Corporation 1.8.0_141 (OpenJDK Runtime Environment 1.8.0_141-8u141-b15-1~deb9u1-b15)
Wrapper version:	3.5.30
Server version:	9.2.21.v20170120
Servlet version:	Jasper JSP 2.3 Engine
JSTL version:	standard-taglib 1.2.0
Platform:	Linux amd64 4.9.0-4-amd64
Jcpuid version:	3
Processor:	Westmere (corei)
Jbigi:	Locally optimized native BigInteger library loaded from file
Jbigi version:	4
GMP version:	6.1.2
Encoding:	UTF-8
Charset:	UTF-8

• Router Logs

10/19/17 4:35:12 PM INFO [JobQueue 1/1] ter.transport.udp.UDPTransport: UDP selected random port 21639 

• Service (Wrapper) Logs

2017/10/19 16:34:40 | Launching a JVM...
2017/10/19 16:34:43 | WrapperManager: Initializing...
2017/10/19 16:34:44 | Starting I2P 0.9.31-0-1ubuntu1
2017/10/19 16:34:45 | INFO: Native CPUID library jcpuid-x86-linux loaded from file
2017/10/19 16:34:45 | INFO: Locally optimized native BigInteger library loaded from file
2017/10/19 16:34:52 | INFO:  Removing old identity file: router.info
2017/10/19 16:34:52 | INFO:  Removing old identity file: router.keys.dat
2017/10/19 16:34:52 | INFO:  Removing old identity file: keyBackup/privateEncryption.key
2017/10/19 16:34:52 | INFO:  Removing old identity file: keyBackup/publicEncryption.key
2017/10/19 16:34:52 | INFO:  Removing old identity file: keyBackup/privateSigning.key
2017/10/19 16:34:52 | INFO:  Removing old identity file: keyBackup/publicSigning.key
2017/10/19 16:34:53 | CRIT  [ Establisher] ter.transport.udp.UDPTransport: IP changed, restarting with a new identity and port
2017/10/19 16:34:53 | CRIT  [ Establisher] net.i2p.router.Router         : Starting final shutdown(4)
2017/10/19 16:34:53 | CRIT  [ Establisher] net.i2p.router.Router         : Shutdown(4) complete
2017/10/19 16:34:56 | on_exit trigger matched.  Restarting the JVM.  (Exit code: 4)

[zzz]

In bf63ef06b5fffb2d2af9f86ce3244f64c257d540 to be 0.9.31-6

Changed 'IP changed' message to WARN. The two shutdown messages remain CRIT.