Update wiki javascript to modern jQuery.  Removing section editing.
Remove redesign banner
Merge pull request #1913 from openjck/remove-redesign-banner

Remove redesign banner
Fix #1782: Delete page templates from old design
Merge pull request #1792 from openjck/migrate-redesign-templates

Fix #1782: Delete page templates from old design
Merge pull request #1891 from darkwing/wiki-edit-cleanup

Update wiki javascript to modern jQuery.  Removing section editing.