BuildManager: Don't count disabled steps in progress
BuildManager: Don't count disabled steps in progress

QFuture limits the signals that are emitted for progress. A disabled
step takes so little time that its progress information is lost.
Since technically a disabled step never finishes, counting them in the
progress was dubious anyway.

Task-number: QTCREATORBUG-10606
Change-Id: I1860c65242282e8e2890f4977c487a6e6dcfbf2d
Reviewed-by: Daniel Teske <d8a411aec9a206efedb4d45b75fe8d13f1e2b628@digia.com>

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