Add xenial patch to ant test target

Jetty 9.3.28 (ticket #2098)
This breaks Debian builds, fixes to follow

Don't set I2P user agent, spoof MiniUPnPc
Don't convert string-to-bytes-to-string
Don't fallback to alternate code after failure
Don't use HttpURLConnection if proxy enabled
Add location sanity checks
Force Connection: close
Don't attempt to set Host header, HttpURLConnection ignores it
Disable following redirects

Add fast zero-decompressor

For new installs, change owner rather than giving 'F' permission to Users group
For existing installs, change owner and change 'F' permission to 'RX' for Users group
Local privilege escalation vulnerability
Introduced 2009-06-11, released in 0.7.5 2009-06-29
Reported by Juilo Cesar Fort of Blaze Information Security 2020-04-28

Fix malformed HTTP requests
Check HTTP response code in Parser
Check content type in Parser
Debug log in Parser
Show device URL in CLI
Don't retry after parser exception
Close resources in finally block

On iframed i2ptunnel pages, resize the height of the iframe when a config table is expanded or contacted

reverse string change to welcome wizard, Alternatively isn't that confusing and translation is important.

Should reduce RTT by 225 ms

As suggested by orignal

License: CC0
Source: Funded by MuWire development

Log tweaks

Set interfaces at startup, to prevent Android from binding to public interfaces
Log fix

Update SSDP listening sockets on interface changes

Switch to alternate device on connected event if better
Remove mappings on device change
Fix bug, wasn't removing mappings on device removal
Retry other devices on device removal or disconnect

Change data structure of ignored devices to store full device
Don't ignore disconnected devices even if subscription successful
Clear event veriables when switching devices
Hide non-IGD devices from ignored list

Numerous fixes for handling multiple devices and selecting the best one
Fixes on device removal
Deal with devices that support permanent leases only
Locking fixes
Sort ignored devices in UI
Remove unused isDisabled field
Log tweaks