Add changes required to build against Qt 5.3.0

Change-Id: If8375223594fcb28e8faabec888ba43a63754ba1
Reviewed-by: Sandro S. Andrade <sandroandrade@kde.org>
Testing gerrit replication to gitorious

Change-Id: Ib2cfcd5e47549771763200ebc49314059303318e
Reviewed-by: Sandro S. Andrade <sandroandrade@kde.org>
Add XMI example of composite structure with typed connector

Change-Id: I249888bc6d2dd6df7259a5e36ef3248f79ac4006
Reviewed-by: Sandro S. Andrade <sandroandrade@kde.org>
Add improvements in SADuseProfile

Change-Id: Ia5686c3020e832ce3162ec3a96336271193fc2e2
Reviewed-by: Sandro S. Andrade <sandroandrade@kde.org>
+ icons for some classes, will be moved to the appropriate plugin later.
+ recent files functionality for Duse, copied from Qt examples. Will clean the UI later.
+ merge to compile against 5.3.0
Merge branch 'master' of https://github.com/qtproject/qtmodeling
sync.profile: Update branch dependency to dev instead of stable

the 'stable' branch is almost dead and will be deleted really soon now.

Change-Id: Ic9dc837fc061dedf74ab11b4f82cd0cfdf2bf8f6
Reviewed-by: Sandro S. Andrade <sandroandrade@kde.org>
Merge branch 'master' of https://github.com/qtproject/qtmodeling
Resolve an issue when Duse-MT plugins could not be found because on Mac OS, the binary is within a package. The solution comes from http://qt-project.org/doc/qt-4.8/tools-plugandpaint.html :
"We initialize the pluginsDir member variable to refer to the plugins subdirectory of the Plug & Paint example. On Unix, this is just a matter of initializing the QDir variable with QApplication::applicationDirPath(), the path of the executable file, and to do a cd(). On Windows and Mac OS X, this file is usually located in a subdirectory, so we need to take this into account."
I haven't tested the modification under Linux, not Windows yet.
Added icons for the Model Inspector tree view in Duse-MT. These icons are part of the ModelingWidgets but I think they should be directly in the Model Inspector plugin.