[#67] increase the icon sizes in the Mac DMG to match the icon sizes in the mock up
[#67] increase the icon sizes in the Mac DMG to match the icon sizes in the mock up


Former-commit-id: 3d3cbb979369ab1122e3a175c8c5bf1e1e251de7
hermwong/phonegap-app-desktop,hermwong/phonegap-app-desktop,hermwong/phonegap-app-desktop,hermwong/phonegap-app-desktop,hermwong/phonegap-app-desktop