gnucash-on-osx master: Upgrade Guile to 2.2

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-osx/commit/8ed792e0 (commit)
	from  https://github.com/Gnucash/gnucash-on-osx/commit/5c684b72 (commit)



commit 8ed792e0ae516ae052d982df8df9f43d3c1ec5c4
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Jul 16 12:48:19 2018 -0700

    Upgrade Guile to 2.2



Summary of changes:
 modulesets/gnucash.modules                       |  18 +-
 patches/guile-2.2-libguile-Makefile-fixups.patch | 212 +++++++++++++++++++++++
 2 files changed, 227 insertions(+), 3 deletions(-)
 create mode 100644 patches/guile-2.2-libguile-Makefile-fixups.patch