Issue 3636: Changed copy on Account Created confirmation page to reflect 24 wait time

The following copy changes:
<i>In just a few minutes, you should receive an email at the address you gave us.</i> -> <b>Within 24 hours</b>, you should receive an email at the address you gave us.

<i>If you don't hear from us within 2 hours, and you don't find our email in your spam filter, please drop us a line...</i> -> If you don't hear from us within <b>24</b> hours, and you don't find our email in your spam filter, please drop us a line

https://code.google.com/p/otwarchive/issues/detail?id=3636