gnucash-on-windows master: Some setup fixes resulting from setting up on the build server.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/3f25ce7d (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/6a521864 (commit)



commit 3f25ce7d7f9633af0e79dfb9cabeacb4b4c38834
Author: John Ralls <jralls at ceridwen.us>
Date:   Sat Jul 29 14:19:35 2017 -0700

    Some setup fixes resulting from setting up on the build server.



Summary of changes:
 setup-mingw64.ps1 | 47 +++++++++++++++++++++--------------------------
 1 file changed, 21 insertions(+), 26 deletions(-)