CMake: Make CMake plugin work with RemoteLinux plugin.

Modified CMake plugin to work correctly with RemoteLinux plugin.
Because of not being able to extract files to be installed from CMake
project, only executable targets are automatically added to deployment
files. All other files have to be specified in CMakeDeployment.txt file
which should be placed into root of CMake project. The file format is:
> deployment/prefix
> relative/source/file1:relative/destination/dir1
> ...
> relative/source/filen:relative/destination/dirn

Where:
- deployment/prefix is (absolute) path prefix to which files will be
  deployed on the remote machine.
- relative/source/file is file path relative to CMake project root.
  Plain files - no directories or wildcards supported.
- relative/destination/dir is destination directory path relative to
  deployment/prefix.

Change-Id: I0831636c1b9aac3ff16bb6293104c512d2abfb5a
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Port welcome screen to Qt Quick 2

This ports the welcome screen to use QtQuick 2.0.
I have disabled the plugin on Qt4 builds.

Change-Id: Ia921d0747c8f7d4441c88fc9fb77b822496091f4
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>