Force FT font engine to load the right glyph metrics

Change-Id: If027ea4c1a3b2ca8f972592abe3534165f62cf4e
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Request the glyph at the right subpixel offset

Change-Id: Iace18740565862f1c66e2d654a1a2e7bc1a16fc7
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>