Older commit history is in KDE svn:
http://websvn.kde.org/trunk/KDE/kdelibs/kdeui/itemviews/kidentityproxymodel.cpp?view=log
Ammended to update the license headers.
Merge-request: 900
Reviewed-by: Gabriel de Dietrich <gabriel.dietrich-de@nokia.com>
Conflicts:
doc/src/frameworks-technologies/model-view-programming.qdoc
tests/auto/headers/tst_headers.cpp
(cherry picked from b00089261eafbdf5f92ed94d7fb20b402bfcaeb2)