Merge pull request #174 from petithug/stephen-farrell

stephen-farrel
update date
Modification for DTD conformance

- Added date elements in various references to be conform to the DTD,
  which permit to build the I-D with xml2rfc 2.3.11.

Note that building with xml2rfc 2.3.11 changes a lot of things in the txt
format.
Change port in example

- Following comment by Stewart Bryant, changed the port in the example
  from 6100 to 6084.
Merge pull request #176 from petithug/stewart-bryant

Change port in example
Merge pull request #175 from petithug/dtd-conform

Modification for DTD conformance
Commment from Adrian Farrel

- s/the appropriate algorithm/an
appropriate algorithm/
Merge pull request #177 from petithug/adrian-farrel

Comment from Adrian Farrel
Fixes for xml2rfc 2.4.0

- Added comma after e.g. and i.e.
- Fixed hangText.
Wesley Eddy discuss on minimum timer

- Added "The value MUST be at least 200 milliseconds, which means the
  minimum time delay before dropping a link is 1000 milliseconds."
Merge pull request #178 from petithug/xml2rfc-2.4.0

Fixes for xml2rfc 2.4.0
Merge pull request #180 from petithug/wesley-eddy

Wesley Eddy discuss on minimum timer
update date
Stephen Farrell's comment

The comment is:

"[I]s the overlay-reliability-timer in the configuration defined in 11.1
supposed to override the "15 second" timer ("Maximum Request
Lifetime") defined in section 2 and and used in various
places, if the value of the overlay-reliability-timer is more
than 15000?"

I modified the definition to explain that the 15 second value is in fact
the overlay-reliability-timer value multiplied by the number of
transmission, 5.