Reintroduce QIcon doc image (from Qt 4 docs)

This fixes the

   [Missing image icon.png]

warning on QIcon docs.

Change-Id: I16aafb51c146fb675f657a7d8210033a17abf642
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Fix QLocale::standaloneMonthName when d->m_data == systemData()

At the moment if  d->m_data == systemData() it calls
systemLocale()->query but forgets about the standalone part
so you get the wrong data

This patch introduces the new enums so that backends can implement
properly the standaloneMonthName feature properly. At the moment the Windows
and Mac ones still return the monthName, the Unix and Blackberry ones return
the data we store in months_data

Change-Id: Idc5a50b04ab1f914f16c7385be1dca2e027feae3
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix QFontConfigDatabase crash

Take into account the possibility that the target platform plugin does not
support platform services.

Change-Id: I48e7fac2e1230a9a7d450414044d23ed26b334be
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
QLocale: cache the C locale's private

Change-Id: I81bbfeffebb5b7fc29d67bb7127beaf13838ac9f
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
QLocale: cache the QLocalePrivate for the default QLocale

Change-Id: I6f05da4d426a0aa685dd9f2fd0020e413a4bebad
Reviewed-by: Lars Knoll <lars.knoll@digia.com>