[#4257] Fixed page controls not showing on last page of activity stream

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>
[#4257] Ugly hack to fix Access Denied error in IE

It seems that some combination of IE11, jQuery 1.8.0, and possibly
something else on our page, doing $('<li>elem</li>') causes IE to raise
an "Access denied" error claiming that we're attempting cross-site
javascript iframe access.  However, doing $('#elem').append('<li>elem</li>')
works fine.  I'd prefer to upgrade jQuery but this is a quicker work-around.

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>
[#4257] Disable hash-based scroll management as it's not worth it

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>