Fix text being cut off at the right side in print preview.

This patch now also copies the state of the QPainter returned from
QPaintEngine::painter for the first page of a print preview, as it is
done for all other pages of a preview in QPreviewPaintEngine::newPage().

Task-number: QTBUG-30621
Change-Id: I50001231c4006b9627ff80504618cbe0fa6d9f65
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Build offscreen plugin only if freetype is available on Windows.

Task-number: QTBUG-29685

Change-Id: I0d80437d07ad7f9e11343bfa7afbdeb30583f8c5
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Android: Get SSL root certificates from TrustManager

On Android, when not using Ministro, we cannot read certificates
from the file system, so we have to get them through Java APIs instead.

Change-Id: I415329fcb45836735c1112dbe832214b3c73dc9a
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>