Add note to Apache deployment re: virtualenv on Windows

[anonymous]

Here is a quote from the "Using a virtualenv" section of the "How to use Django with Apache and mod_wsgi" documentation:

"To do this, add an additional path to your WSGIPythonPath directive, with multiple paths separated by a colon:"

I was trying to do this on Windows and it wasn't working. I eventually found out that on Windows it needs to be separated with a semicolon, not a colon. Here is a quote from the top of ​the Apache/mod_wsgi documentation:

"If multiple directories are specified they should be separated by a ‘:’ if using a UNIX like system, or ‘;’ if using Windows. If any part of a directory path contains a space character, the complete argument string to WSGIPythonPath must be quoted."

That last bit may be good to include in the Django documentation as well.

[Baptiste Mispelon]

Yes, absolutely.

[Claude Paroz <claude@…>]

In 3a5da7a11c009e46a50a8c4f432deb890151740a:

[1.6.x] Fixed #22116 -- Added precision about WSGIPythonPath separator

Thanks donjpacheco for the initial patch.
Backport of 91f4a75a6b from master.

[Claude Paroz <claude@…>]

In 91f4a75a6b83c51aae7318d6aec4e5557ffe42ff:

Fixed #22116 -- Added precision about WSGIPythonPath separator

Thanks donjpacheco for the initial patch.