Check if Start/EndPage returns non-positive value when error checking

StartPage and EndPage are documented to return a non-positive value (0 or
less) when they fail, therefore it is not enough to check if !StartPage.
Checking if is 0 or less is more accurate.

Change-Id: Ia0ff43da4e4309ba0a5983e91a0ad583aad0a955
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Both HiQualAA and normal AA should mean antialiasing in rasterengine.

Change-Id: I1970c96e7681e4059984d837e12f044f138e6d7e
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Uncomment some tests which accidently got commented

With SHA1 47b3ecf3f49933f2a7e3a9dd98f0641d513822bb some tests got
commented out by accident. This re-enables those tests.

Change-Id: If9c7d8a672b66086895a0383fe87d3101fb146fb
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
network tests: add manual test for auth / proxy auth

This is helpful to e.g. test an NTLM proxy.
The test server currently does not support NTLM; this test offers a
possibility to specify a proxy server via environment variables.

Change-Id: Iea94656d38424c1d932fc854d13ca15ca47cdd68
Reviewed-by: Richard J. Moore <rich@kde.org>