Merge pull request #1 from rburchell/master

Fix crash caused by double free on wseglDeleteDrawable
updates for 1.10 Linux DDK

tested with TI Graphics SDK 5.01.00.01

taken from [1] and [2]

[1] http://downloads.ti.com/dsps/dsps_public_sw/gfxsdk/4_10_00_01/exports/0001-Qt-4.x-patch-for-1.10DDK.patch
[2] https://github.com/scottellis/sgx-qt-build/blob/master/qt-4.8.3/pvrqwswsegl.patch

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
waylandwsegl: do manual update only for devices supporting OMAPFB_UPDATE_WINDOW

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
waylandwsegl: do not pin numFlipBuffers to zero

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>