Changes for Qt/CE 4.3.x "Feierabend" release.

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*                           Features                                       *
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- Added precompiled platform tools to package

- Added/Updated documentation

- Added/Updated examples

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*                           Bug fixes                                      *
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- cetest
   * cleanup directory hierarchy in case user specified.
   * fixed libpath option which was not case-insensitive.

- configure.exe
   * fixed order of c-runtime deployment.
   * fixed --(xy)prefix options to work in Windows Command Prompt.

- QDesktopWidget
   * fixed SIP handling bug.

- QFeatures
   * fixed custom configuration build issues.

- QFileDialog
   * updated UI to fit on embedded screen.
   * in case no native dialog exists on device, use Qt FileDialog instead.
   * fixed file extension bug.

- QFSFileEngine
   * workaround for Windows Mobile for taking MAX_PATH not into account.

- QGraphicsView
   * fixed bug when qreal is not double.

- QLibraryInfo
   * fixed legacy bug about not finding the plugins path.

- QSysInfo
   * added Windows CE 6.

- QWidget
   * fixed potential minimize/maximize bug.

- QPaintEngine
   * detect bitdepth on startup and create 16bit buffers, if possible.