gnucash master: Fix make distcheck

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/98fe3364 (commit)
	from  https://github.com/Gnucash/gnucash/commit/1348d5b9 (commit)



commit 98fe33643064d15cf5bc1817b6f9026fb5c32da3
Author: Geert Janssens <janssens-geert at telenet.be>
Date:   Fri Jan 16 18:48:52 2015 +0100

    Fix make distcheck
    
    - make the Google Test Suite really optional (for now)
    - add some missing scm files to POTFILES.skip
    - add missing c++ header files in qof



Summary of changes:
 po/POTFILES.in                  | 1 +
 po/POTFILES.skip                | 4 ++++
 src/libqof/qof/Makefile.am      | 2 ++
 src/libqof/qof/test/Makefile.am | 8 ++++++--
 src/test-core/Makefile.am       | 4 ++--
 5 files changed, 15 insertions(+), 4 deletions(-)