Inform Qt 5 about the .qmake.cache that we're generating
Inform Qt 5 about the .qmake.cache that we're generating

Change-Id: I2708b8382125302c07f4cce7ef8dcb8af989c78e
Reviewed-by: Oswald Buddenhagen <6a8868beda3e139b5ac22b2534a23d3e6ba81819@digia.com>

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