qdoc: Handle collision nodes when building index files

Currently qdoc skips collision nodes (and their children)
when reading index files. This means that cross-linking
between modules does not work for nodes that are defined
under a collision page node. Most notably, the QML global
object 'Qt' cannot be linked to from outside Qml module
as it collides with Qt namespace.

This change fixes the issue by skipping collision nodes
and only processing their children when writing index
files. In addition, we need to adjust the function that
searches for nodes to the possibility that there may be
multiple nodes with the same name but different type.

Task-number: QTBUG-31096
Change-Id: Ic71d714f85539d8537021c73d8f1a527006a6f23
Reviewed-by: Martin Smith <martin.smith@digia.com>
Disable precision timers when running MSVC2012 code on pre-Windows 8.

Precision timers can cause the event loop to lock up
when running MSVC2012 code on pre-Windows 8.

Task-number: QTBUG-27266

Change-Id: Idd73731e82843d0d140859bab825bc1a54eccf1a
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
fix PlatformToolSet tag location in vcxproj files

The PlatformToolSet tag belongs into the PropertyGroup with the label
"Configuration". The former location in an anonymous PropertyGroup
tricked Visual Studio into displaying the right PlatformToolSet but
using its default value. If VS 2010 and VS 2012 are freshly installed
on the same machine, the default toolset for VS 2012 is VS 2010.

Task-number: QTBUG-30822

Change-Id: If00a532e92b0812c552b1cac52ff77a1e7039146
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Move QBasicDrag and QSimpleDrag to QtGui.

These are useful as default implementations of
QPlatformIntegration::drag(), instead of having it return 0 which will
lead to crashes in Qt Quick 2 and widgets applications that use drag
and drop.

Task-number: QTBUG-31288

Change-Id: I70efa139306ced5d879def0f74e3a72d3bcd64f7
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Windows: Suppress mouse events synthesized by OS.

Change the hint for
QPlatformIntegration::SynthesizeMouseFromTouchEvents to false
for Windows and suppress the events synthesized by OS.

The synthesized events cause touch events to generate 2 clicks
in Quick2.

Leave code as is for Windows CE.

Task-number: QTBUG-31386
Change-Id: Ia0987342dcdd55c8540810da5e4b90518a501ce6
Reviewed-by: Alan Alpert <aalpert@blackberry.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>