git-qt-merge-mainlines: Add some new modules to the default list

 - qtconnectivity
 - qtlocation
 - qtmacextras
 - qtwinextras

will be added for Qt 5.2.0

Change-Id: I4559f095138c257f8d9787a9dd3e8bb45712844c
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>