Force gray-antialiasing for text.
Force gray-antialiasing for text.

Subpixel antialiasing cannot be supported when rendering is done
to a transparent-cleared FBO.

Change-Id: I46eeac792416f6164521c9142a8b6cffbbddc99b
Reviewed-by: Marco Bubke <5254e489b34ec8bbce36789100e3fc0f41fa62ef@digia.com>

maui-packages/qt-creator,richardmg/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,Distrotech/qtcreator,richardmg/qtcreator,duythanhphan/qt-creator,kuba1/qtcreator,xianian/qt-creator,omniacreator/qtcreator,farseerri/git_code,darksylinc/qt-creator,malikcjm/qtcreator,farseerri/git_code,amyvmiwei/qt-creator,Distrotech/qtcreator,colede/qtcreator,xianian/qt-creator,amyvmiwei/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,richardmg/qtcreator,omniacreator/qtcreator,darksylinc/qt-creator,danimo/qt-creator,malikcjm/qtcreator,colede/qtcreator,duythanhphan/qt-creator,darksylinc/qt-creator,richardmg/qtcreator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,danimo/qt-creator,darksylinc/qt-creator,omniacreator/qtcreator,colede/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,danimo/qt-creator,kuba1/qtcreator,xianian/qt-creator,danimo/qt-creator,kuba1/qtcreator,farseerri/git_code,kuba1/qtcreator,Distrotech/qtcreator,maui-packages/qt-creator,malikcjm/qtcreator,farseerri/git_code,Distrotech/qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,kuba1/qtcreator,malikcjm/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,farseerri/git_code,maui-packages/qt-creator,AltarBeastiful/qt-creator,colede/qtcreator,danimo/qt-creator,amyvmiwei/qt-creator,duythanhphan/qt-creator,colede/qtcreator,danimo/qt-creator,danimo/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,AltarBeastiful/qt-creator,malikcjm/qtcreator,omniacreator/qtcreator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,richardmg/qtcreator,malikcjm/qtcreator,darksylinc/qt-creator,Distrotech/qtcreator,duythanhphan/qt-creator,danimo/qt-creator,farseerri/git_code,kuba1/qtcreator,richardmg/qtcreator,darksylinc/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,Distrotech/qtcreator,amyvmiwei/qt-creator,richardmg/qtcreator,AltarBeastiful/qt-creator,darksylinc/qt-creator,maui-packages/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,Distrotech/qtcreator,xianian/qt-creator,xianian/qt-creator,malikcjm/qtcreator,kuba1/qtcreator,duythanhphan/qt-creator,farseerri/git_code,darksylinc/qt-creator,farseerri/git_code,omniacreator/qtcreator,danimo/qt-creator,colede/qtcreator,martyone/sailfish-qtcreator