Add new option to qdoc.

The -redirect-documentation-to-dev-null option allows to get all qdoc
errors, without creating full documentation. It significantly reduces
amount IO operations.

Change-Id: I80fb6f9e304eb106f1c1d1e6320a1b38d788f6fc
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Move the Preprocessor loop macros up with the others.

Change-Id: Iec9a6ab7cbd12902f8aeacdde9987ca52e2e2391
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
QImage: Added a move constructor.

[QTBUG-30517]

Change-Id: I173de783ef8113ab10fb553cc82ef60904a15400
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QIcon: Added a move constructor.

Change-Id: Idedb935352bf8a0cd7d4293f7b8530d5b9b17616
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>