Windows RT and Windows Phone QPA

Change-Id: I37bf0716e61a1f53ce3e6a47fc1ab3e489a4e515
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
qmake: move PlatformToolset to VCConfiguration

Reverse engineering vcxprojs shows that
PlatformToolset should be defined in PropertyGroup
Label="Configuration".

Change-Id: I453d5abfdc0b86376f0f0eb7aa12721d21fe2418
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
qmake: added deployment files support for winrt and winphone targets

The user needs to specify DEPLOYMENT variable. The syntax
is the same as previously used DEPLOYMENT. For more info
please refer to the qmake documentation. The change adds
a new itemgroup, "Deployment Files". All files in this
itemgroup are marked as DeploymentContent and are then
packaged with the application either as XAP or WinRT
specific file format.

Change-Id: I4e92020c068ae31c6ed4fd8f60f0cea122ab3fd2
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
qmake: added WMAppManifest generation for winphone target

Platform specific qmakespec needs to enable: autogen_wmappmanifest and winphone. Manifest will be generated once and only for the application template.

The Manifest will generated from following variables:
* PRODUCTID - the GUID (application specific)
* PUBLISHERID - GUID (publisher specific)
* TARGET - short application name (executable)
* AUTHOR
* PUBLISHER
* DESCRIPTION - application description

Change-Id: I27a60fc96c6957120b00724fa1e422f154110cfa
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>