Getting the #include directives ready for Qt5. This includes the
new-project wizards.

Change-Id: Ia9261f1e8faec06b9285b694d2b7e9a095978d2b
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

Change-Id: I2b72b34c0cfeafc8bdbaf49b83ff723544f2b6e2
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

Change-Id: I3afc3a4f2e0dd2671279c2d071779f1d7b277849
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

Change-Id: If18afb5d4665924e7d9250dccbc60a65e6daa75e
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

This enables a QtVersionFactory to be able to create more than one
QtVersion, which can make sense e.g. if there are several closely
related ones.

Change-Id: I597f524abfc27c483c71bb6567ce7b77bc3d3041
Reviewed-on: http://codereview.qt.nokia.com/835


Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

Also adjust qmldumptool to remove the dependency on qt4project/qmlproject, by
passing in the qtversion instead of figuring it out in qmldumptool.

Change-Id: Ie6ac582d36bfef290313c0716b33b62fcf42630c
Reviewed-on: http://codereview.qt.nokia.com/70


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

Split up target specific code into subclasses. Also change
Qt4BuildConfiguration to allow a null qtversion.

Remove code that relied on always having a qt version.
Also make it possible to remove all qt versions.

Completly change the qt in path autodetection to be only
a fall back if no configuration was found.

Note: For now the old settings are not removed, as such 2.2 and master
can coexist.

Reviewed-By: hunger

Change-Id: I8b73d583be1ee7183f4074bce49d5390e38631a2

Reviewed-by: dt <qtc-committer@nokia.com>
Task-number: QTCREATORBUG-125