Merge remote-tracking branch 'upstream/develop' into develop
[gh-604] Remove code which auto-creates sites from WDN registry

Moving to a process where the WDN registry site request form is forwarded to the university ticket system, then site created manually
[gh-604] site-email no longer needed in site creation
[gh-604] Remove the WDN Registry connection settings form
[gh-604] Remove wdn registry variables from database
[gh-604] Add Email alert settings vars to del in update function
[gh-603] Send support email to mysupport rather than listsrv

Also, rebrand as 'support' from 'technical feedback'
[gh-609] Move Drupal README back to README.txt
[gh-609] Move How to Contribute to the README
[gh-574] Add #maincontent to form css to prevent unl feedback conflicts
[gh-419] If proxypass include querystring in rebuilt $_SERVER['REQUEST_URI']
[gh-419] Just use $_SERVER['QUERY_STRING']
[gh-613] Have the migration tool send a User-Agent header.  Escape log messages to prevent XSS.
Merge pull request #614 from tsteiner2/issue-613

Closes #613
Merge pull request #612 from erasmussen2/issue-419

Closes #419
Merge pull request #610 from erasmussen2/issue-609

Closes #609
Merge pull request #606 from erasmussen2/issue-603

Closes #603
[gh-616] Have migration tool handle redirects where only the case of the path changes.
Merge pull request #617 from tsteiner2/issue-616

Closes #616.
[gh-618] Upgrade Drupal Core to 7.20