Resolve issue 858
Merge branch 'fix/issue858'

Closes: https://openhatch.org/bugs/issue858

Thanks to Aaron1011 for finding and fixing this, lickety split!
Add a sponsors page

This moves the language about the prospectus onto the sponsors page,
and it adds a footer link to the sponsors page, and it adds a link to
the sponsors page from the /donate/ page. It also names our sponsors
to date, to whom we are grateful!

It also adds an in-kind sponsors section, where we can thank Linode.
No one was looking at the broken link emails anyway; disabling
Adding rsync.net since we still use them
Fixed #808: +projects now Redirects to projects.
Fixed #808: made " projects" redirect to /projects
Adjusted tests to make project URL's properly work without the +
AFAICT we don't need this escaping
Removed Unused jquery 1.8.20
Removed references to JQuery 1.9.20 in mysite/base/assets.py
Merge branch 'master' of https://github.com/openhatch/oh-mainline