r18740 - gnucash/trunk/packaging/win32 - Clarify required steps to setup windows build environment.

[Geert Janssens]

Author: gjanssens
Date: 2010-02-26 16:28:27 -0500 (Fri, 26 Feb 2010)
New Revision: 18740
Trac: http://svn.gnucash.org/trac/changeset/18740

Modified:
   gnucash/trunk/packaging/win32/README
Log:
Clarify required steps to setup windows build environment.
The mingw website has changed quite a lot since the README
was written and some of the url's used in it were confusing.
I have changed the url's to point to the actual packages
on sourceforge (current at the time of this writing)
and added some extra details where I had trouble understanding
the actions to perform.