Load all available pixmaps in an icon file.

Fixes the problem that only the first icon would be read from an .ico
file with muliple icons of various sizes in it.

Task-number: QTBUG-28267

Change-Id: I50daa89769054234e9ffc5246f59b46975948871
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
set empty PDB file name in release config of VS 2012 vcxproj files

In release configs qmake sets DebugInformationFormat to None.
If ProgramDataBaseFileName is left unset, then VS 2012 will always
rebuild the complete project. Therefore, qmake now inserts an empty
ProgramDataBaseFileName tag if DebugInformationFormat is None.

Task-number: QTBUG-35570
Change-Id: Ifb91b0bbcf6614621bfe3b12429e2624bd16e77a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>