Add TARGET.EPOCALLOWDLLDATA=1 to Qml Plugin Wizard

Needed for Symbian.

Task-number: QTCREATORBUG-3507
Reviewed-by: Tim Jenssen
Reviewed-by: Alessandro Portale
Change-Id: I35799cd388e44353d6890fe79a411fbed2fb2ef3x
Reviewed-on: http://codereview.qt.nokia.com/394Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

share/qtcreator/templates/wizards/qml-extension/project.pro

@@ -27,7 +27,7 @@ OTHER_FILES = qmldir
 
 qmldir.files = qmldir
 symbian {
-    # ...
+    TARGET.EPOCALLOWDLLDATA = 1
 } else:unix {
     installPath = /usr/lib/qt4/imports/$$replace(uri, \\., /)
     qmldir.path = $$installPath