In message_reader, ignore folder parameter if header provided (fix 4 for NB#126941)
[modest] / src / hildon2 / ui /
drwxr-xr-x   ..
-rw-r--r-- 4247 modest-main-window-ui.xml
-rw-r--r-- 3880 modest-msg-edit-window-ui.xml
-rw-r--r-- 3007 modest-msg-view-window-ui.xml