Update community URL and introduction/acknowledgement sections

[Former user]

Originally reported on Google Code with ID 102

Currently the first section of the UPC spec 1.2 and the working draft 1.3 both list
our "community" URLs as:

    http://www.upcworld.org  and
    http://upc.gwu.edu

Where the first is currently a redirect to the second. 

The GWU site has become somewhat out of date and does not appear to be actively maintained
(or permit editing by other groups).

We should probably update the spec to reference an active community site. 

Options include:

* Leave as-is and find a way to update the GWU site
* Change second URL to http://upc-lang.org
* Change second URL to http://code.google.com/p/upc-specification/ (ie this site)
* Remove the second URL and update the first redirect regularly to point at the current
"best" community site(s)
* Remove all URLs and let people use search engines

Reported by danbonachea on 2012-11-03 03:36:44

[Former user]

"Remove all URLs and let people use search engines" is the best way to be correct unless
someone is committed to keeping the links up-to-date for years.  GWU appears to have
failed at this task.

Reported by jeff.science on 2012-11-05 03:32:23

[Former user]

At the 2/11/13 telecon, Bill agreed to progress this issue and propose finalized changes
to the introductory sections by the end of February.

Reported by danbonachea on 2013-02-11 20:33:18

[Former user]

Suggested Change sent to mailing list

Reported by [e-mail] on 2013-02-25 20:45:16 - Status changed: PendingApproval

[Former user]

committed as SVN r210

Reported by danbonachea on 2013-04-30 17:23:33 - Status changed: Fixed

[Former user]

Ratified in the 5/22 telecon.

Reported by danbonachea on 2013-08-03 03:55:36 - Status changed: Ratified