Extract messages from transformation XMLs as well

Messages.sh

@@ -2,7 +2,7 @@
 
 kdenlive_subdirs="plugins renderer data src src/ui"
 
-$EXTRACTRC --tag=name --tag=description --tag=label --tag=comment --tag=paramlistdisplay data/effects/*.xml data/generators/*.xml data/kdenliveeffectscategory.rc >> rc.cpp
+$EXTRACTRC --tag=name --tag=description --tag=label --tag=comment --tag=paramlistdisplay data/transitions/*.xml data/effects/*.xml data/generators/*.xml data/kdenliveeffectscategory.rc >> rc.cpp
 $EXTRACTRC `find $kdenlive_subdirs -name \*.rc -a ! -name encodingprofiles.rc -a ! -name camcorderfilters.rc -o -name \*.ui` >> rc.cpp
 
 $XGETTEXT `find $kdenlive_subdirs -name \*.cpp -o -name \*.h -o -name \*.qml` *.cpp -o $podir/kdenlive.pot