Merge branch 'test_invert'
authorjoan <joan@abyz.co.uk>
Sun, 30 Aug 2015 09:56:12 +0000 (10:56 +0100)
committerjoan <joan@abyz.co.uk>
Sun, 30 Aug 2015 09:56:12 +0000 (10:56 +0100)

Trivial merge