No UI, must edit config file and restart.
ref: http://zzz.i2p/topics/3549

Contains code adapted from I2P+. License:
Permission is granted to upstream to incorporate I2P+ modifications under the license
of the applicable upstream subsystem as specified in LICENSE.txt.

Broken in move from mtn to git
Fix some places that were broken even with mtn

Do not rebind internal port if only SSU external port changed
so "full cone" NAT will work
Log warning if NTCP configured with fixed port different from SSU

Eliminate Symmetric NAT errors for "full cone" NATs with different external port
Separate isPortFixed() states for IPv4 and IPv6
Allow port changes when state is unknown
Require two tests to transition from unknown IPv4 state
Save external port config on change
Don't reset external port config at startup
Add port change event to event log

Fix rare peer test NPE if we did not set charlie's hash

Remove ERR- and WARN- prefixes from translated status strings

Fix encode/decode search param
Copy CSS to non-default themes, not tweaked yet
Add support for shorter nf_ prefix to XSS filter
Remove unneeded float_right, reported by drzed

WIP, more polishing todo
default theme only, others to follow

searches torrent names only
CSS fixups to follow

Use extension version if client not known
Consolidate getAzVersion() calls
Add notes about client identification

for new and existing installs
Reported by Opicaak

minor cleanups

previously just closed the socket

previously just closed the socket

previously just closed the socket

Message/log cleanups

as suggested by drzed

Don't show zero send/receive BPS after 15 sec idle; show smoothed value,
so display isn't mostly zeros.
BPS sorters will now work correctly and totals are more accurate.
Pass now to send/receive BPS methods and BW estimator
Comment out UDPTransport.noteSend()
Fix alignment issue in NTCP peers table
Show 0 instead of 0.00 for zero BPS
Change rounding mode of formatters

Convert IPv6 addresses to canonical form

add i2pd console to list

to be only what stats.i2p needs
Disabled until next release, to preserve dev build anonymity,
tested while enabled
Commented out unsed code
ref: http://zzz.i2p/topics/3515

Command error handling and message improvements
Implement simple HELP command
bump -1

Minor cleanup of dup strings

Use PortMapper constants to check registration
Reported by lbt

As proposed at http://zzz.i2p/topics/3520