WinRt: add --qmldir option to windeployqt call

Task-number: QTCREATORBUG-11696

Change-Id: Idd2eab5cc31e11320b2ba6cc75ca376d1b3acb5c
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Android: Don't let the user choose a stupid ANDROID_PACKAGE_SOURCE_DIR

On creating a AndroidManifest.xml we ask the user where to put the file,
which as a sideeffect also sets ANDROID_PACKAGE_DIR.

Since we copy everthing from ANDROID_PACKAGE_SOURCE_DIR into the build
directory, using the project's source directory is not desireable.

We now show a big error if the user tries that.

Task-number: QTCREATORBUG-11708
Change-Id: I7fade3efac0b7466cad8e83a92c2115d0a70c683
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>