gnucash master: Fix Travis build errors.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/1774de79 (commit)
	from  https://github.com/Gnucash/gnucash/commit/0f506276 (commit)



commit 1774de79fed06ded00f9d2f28d979c25dbfa6244
Author: John Ralls <jralls at ceridwen.us>
Date:   Thu Nov 17 17:07:05 2016 -0800

    Fix Travis build errors.



Summary of changes:
 src/backend/dbi/test/test-backend-dbi-basic.cpp | 1 +
 src/backend/sql/gnc-account-sql.cpp             | 4 ++++
 src/backend/sql/gnc-bill-term-sql.cpp           | 4 ++++
 src/backend/sql/gnc-tax-table-sql.cpp           | 4 ++++
 4 files changed, 13 insertions(+)