Table tweaks
More ial work
Fix IAL detection and rendering

key=value still need to be parsed, by #anchor and .class are detected
and properly rendered.
Fix IAL parsing

escaping quotes inside key=value attributes might not work as expected
yet.
Test IAL too
Kill the old titleBlock and only allow TOML titleblock
Close open section before middle or back tag
IALs added
Fmt, and some comments on images
Copy xml2rfcv3->xml2rfcv2 again
update gitignore
Add images
Experimental XML2RFC v2 support.
Bunch of xmlv2 updates
A lot of xml2rfc v2 fixes

These also apply to xml2rfc v3. Ordering of the references and other
fluff.